WO2010008018A1 - Horizontal multistage press - Google Patents
Horizontal multistage press Download PDFInfo
- Publication number
- WO2010008018A1 WO2010008018A1 PCT/JP2009/062799 JP2009062799W WO2010008018A1 WO 2010008018 A1 WO2010008018 A1 WO 2010008018A1 JP 2009062799 W JP2009062799 W JP 2009062799W WO 2010008018 A1 WO2010008018 A1 WO 2010008018A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressing
- cylinder
- cylinders
- driving
- plate
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D3/00—Veneer presses; Press plates; Plywood presses
- B27D3/02—Veneer presses; Press plates; Plywood presses with a plurality of press plates, i.e. multi- platen hot presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B7/00—Presses characterised by a particular arrangement of the pressing members
- B30B7/02—Presses characterised by a particular arrangement of the pressing members having several platens arranged one above the other
Definitions
- the present invention relates to a horizontal multi-stage press apparatus for heating and pressing a plate material.
- each plate stands between a plurality of hot plates.
- plate materials processed plate materials
- each plate stands between a plurality of hot plates.
- a horizontal type that is carried in a state and heated and pressed by driving at least one of press plates disposed on both outer sides.
- This horizontal method is a plate or hot plate compared to the vertical method (vertical hot press) that heats and presses the plates and hot plates held in the horizontal direction alternately in the vertical direction. It has the advantage that molding unevenness (uneven thickness) due to its own weight is less likely to occur.
- two pressing cylinders for example, hydraulic pressure
- the pressing position of the cylinder is heated and pressed so as to match the center position in the short side direction (vertical direction) of the plate material.
- the size of the plate material has been diversified. For example, not only the commonly known 6 scales (6 scales (1.8 m) ⁇ 3 scales (0.9 m)), but also the common name 8 scales (8 scales). (2.4 m) ⁇ 4 scales (1.2 m)) and commonly called 10 scales (10 scales (3 m) ⁇ 5 scales (1.5 m)) are also on the market.
- the pressing position of the pressing cylinder with respect to the plate material fluctuates, the inclination of the plate material increases, and the thickness after thermocompression bonding may become uneven depending on the part. So far, the pressing position of the pressing cylinder is adjusted (moved up and down) with respect to the pressing surface of the pressing plate by a movement adjusting mechanism (for example, an elevating hydraulic cylinder) according to the size of the loaded plate material. The relative pressing position of the pressing cylinder is not changed (see Patent Document 1).
- Patent Document 1 it is possible to cope with the diversification of the size of the plate material to some extent by moving and adjusting the pressing position of the pressing cylinder with respect to the pressing plate (pressing surface).
- the adjustment of the movement of the pressing cylinder relative to the pressing plate (pressing surface) is structurally limited to one direction (usually in the vertical direction), precise thickness adjustment (uniformization) is difficult, especially the corners of rectangular plates. The thickness tends to be uneven at the part.
- the plate material has different properties depending on the material (wood) as well as its size.
- a hard plywood such as coral and lauan that has a relatively large elasticity and repulsive force (hard material) tends to tilt or become uneven due to the rebound (springback) phenomenon.
- soft plywood such as cedar and paulownia, which has a relatively low elasticity and repulsive force (soft material)
- the thickness is easily reduced by pressing. Thickness tends to be thinner than specified (particularly at the cylinder pressing position).
- the first problem of the present invention is that the thickness of the plate material (laminated plywood) after thermocompression bonding is controlled by controlling the driving of the plurality of pressing cylinders individually, for example, even if the size or material of the loaded plate material changes.
- the second problem of the present invention is to control the movement of the plurality of pressing cylinders individually or collectively, for example, to move and adjust the pressing position of the pressing cylinder when the size of the loaded plate material changes. It is an object of the present invention to provide a horizontal multi-stage press apparatus that can maintain the thickness of a plate material (laminated plywood) after thermocompression bonding within a range of allowable dimensions and can be adapted to changes in the material of the plate material.
- a horizontal multi-stage press apparatus is A plate is formed by applying adhesives to the bonding surface of a single plate and carrying it in an upright state between a plurality of hot plates and stacking them in the thickness direction.
- the horizontal multi-stage press device that presses and presses the plate material by pressing from the outside in the overlapping direction of the body, and collectively manufactures a plurality of wooden laminated plywoods,
- a plurality of pressing cylinders arranged at a plurality of positions different from each other with respect to the plate surface of the plate material, and pressing the object to be processed from the overlapping direction;
- a cylinder controller that individually controls the driving of each of the plurality of pressing cylinders; It is characterized by providing.
- a plate is formed by applying adhesives to the bonding surface of a single plate and carrying it in an upright state between a plurality of hot plates and stacking them in the thickness direction.
- the horizontal multi-stage press apparatus that heat-presses the plate material by driving at least one of the pressing plates arranged on both outer sides of the body overlapping direction, and collectively manufactures a plurality of wooden laminated plywoods
- a plurality of pressing cylinders disposed at a plurality of positions different from each other with respect to the pressing surface of the pressing plate, and driving the pressing plate to press the object to be processed from the overlapping direction, respectively;
- a cylinder controller that individually controls the driving of each of the plurality of pressing cylinders; Can be provided.
- a specific aspect of the horizontal multi-stage press device is as follows: One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. Combining them together constitutes the object to be processed, and by driving at least one of the pressing plates disposed on both outer sides of the object to be processed in the overlapping direction, the plate material is thermocompression-bonded, and a plurality of wooden laminated plywoods are bundled together.
- An opening / closing cylinder that is disposed near the center on the pressing surface of the pressing plate, and closes / opens the pressing plate by approaching / separating it, It is arranged at a plurality of different positions with respect to the pressing surface of the pressing plate so as to surround the opening / closing cylinder (radially), and drives the pressing plate to press the objects to be processed from the overlapping direction.
- an opening / closing cylinder dedicated to opening / closing the pressing plate for example, one hydraulic cylinder (fluid pressure cylinder)
- an opening / closing cylinder that requires high-speed movement over a long span and a short span are used.
- a pressing cylinder that requires fine movement can be used properly. Therefore, the working efficiency of the hot press is improved by speeding up the opening / closing operation of the pressing plate, and the driving control of the pressing cylinder can be performed with high accuracy without being influenced by the opening / closing operation of the pressing plate.
- the plurality of pressing cylinders are arranged (radially) with respect to the pressing surface of the pressing plate so as to surround the opening / closing cylinder.
- the plate material that is, the pressing plate
- the driving pressure of each pressing cylinder acts on the pressing plate simultaneously and evenly. become.
- the plurality of pressing cylinders are either a fixed type in which the pressing position is not changed, or a movable type in which the pressing position can be changed (lifted up and down) in a direction (for example, the vertical direction) intersecting (orthogonal) the plate material loading direction.
- a composite type in which both are mixed may be used. In that case, when all or some of the plurality of pressing cylinders are fixed, the pressing position movement adjusting mechanism of the pressing cylinder can be simplified.
- the plurality of pressing cylinders may be arranged in a distributed manner such that the pressing positions with respect to the plate surface of the plate material (the pressing surface of the pressing plate) are arranged in a plurality of rows (for example, two rows) along the conveyance reference surface. it can.
- the drive pressure and driving distance of the pressing cylinders can be reduced with respect to a group of pressing cylinders at the same distance from the conveyance reference plane. Common settings can be made, and press control can be executed smoothly.
- the cylinder control unit includes a distance detection unit that detects driving distances when the plurality of pressing cylinders press the workpiece, and a pressure detection unit that detects driving pressures applied to the plurality of pressing cylinders, respectively. And the driving distance of each pressing cylinder detected by the distance detecting means is evenly distributed within a predetermined setting range so that the thickness of the entire object to be processed after heating and pressing is within the allowable dimension range. It is desirable to individually drive and control each pressing cylinder so as to approach each other.
- each pressing cylinder since the driving pressure applied to the pressing cylinder and the driving distance of the pressing cylinder are detected and controlled for each pressing cylinder, immediately based on the detection values (driving pressure and driving distance) obtained from each pressing cylinder.
- the drive of each pressing cylinder can be controlled individually, and the control can be simplified and speeded up.
- a pressure sensor for detecting the cylinder internal pressure of the pressing cylinder can be used as the pressure detecting means for detecting the driving pressure applied to the pressing cylinder.
- a distance detecting means for detecting the driving distance of the pressing cylinder for example, a linear encoder that detects the amount of ram movement of the pressing cylinder can be used.
- the cylinder control unit When the driving pressure of each pressing cylinder reaches a predetermined target range along with the pressing drive of a plurality of pressing cylinders, the driving distance of each pressing cylinder detected by the distance detecting means is within the set range and is uniform without deviation In the uniform range that can be regarded as, it is possible to stop the pressing drive of the plurality of pressing cylinders.
- the cylinder control unit When the driving pressure of each pressing cylinder reaches a predetermined target range along with the pressing drive of a plurality of pressing cylinders, the driving distance of each pressing cylinder detected by the distance detecting means is within the set range and is uniform without deviation In the uniform range that can be regarded as, while stopping the pressing drive of the plurality of pressing cylinders, When the driving distance of any pressing cylinder is not within the uniform range, the driving pressure of the corresponding pressing cylinder is increased by expanding (expanding) the upper and lower limits of the target range related to the driving pressure of the pressing cylinder. Alternatively, the pressure can be reduced.
- the drive pressure of the corresponding pressing cylinder is increased (or reduced) by expanding to an allowable range.
- the driving of the pressing cylinder is individually controlled with emphasis on pressure, so that the overall thickness of the object to be processed (plate material + hot plate) is allowed to a predetermined tolerance, even if the plate material is temporarily inclined due to the return phenomenon in the hard material. Since the inclination of the plate material can be corrected (relaxed) in the process of finishing the dimensions, the generation of defective products can be suppressed and the product yield can be improved.
- the cylinder control unit When the driving distance of each pressing cylinder reaches a set range with the pressing driving of the plurality of pressing cylinders, the driving pressure of each pressing cylinder detected by the pressure detecting means is within a predetermined target range, and the distance detecting means When the driving distances of the respective pressing cylinders detected in the above are within a uniform range that can be regarded as uniform without deviation, the pressing driving of the plurality of pressing cylinders can be stopped.
- the cylinder control unit When the driving distance of each pressing cylinder reaches the lower limit of the setting range with the pressing driving of the plurality of pressing cylinders, the driving pressure of each pressing cylinder detected by the pressure detection means is below the upper limit of the predetermined target range, And when the driving distance of each pressing cylinder detected by the distance detecting means is within a uniform range that can be regarded as uniform without deviation, the pressing driving of the plurality of pressing cylinders is stopped, When the driving distance of any pressing cylinder is not within the uniform range, the driving pressure can be increased if the driving distance of the corresponding pressing cylinder is equal to or less than the upper limit of the setting range.
- the driving distance of one of the pressing cylinders is not within the uniform range, it is considered that the inclination to be corrected (relaxed) is occurring in the plate material, so the driving distance of the corresponding pressing cylinder is less than the upper limit of the setting range. If so, the driving pressure is increased.
- the entire thickness of the object to be processed (plate material + hot plate) is predetermined while preventing (monitoring) excessive pressing particularly on the soft material. Since the inclination of the plate material can be corrected (relieved) in the process of finishing to the allowable dimension, the generation of defective products can be suppressed and the product yield can be improved.
- whether or not the driving distance of the pressing cylinder is within the uniform range is determined by the difference in the driving distance of each pressing cylinder detected by the distance detecting means, or the plate material calculated from the detected value of the driving distance. It can be determined by the magnitude of the inclination.
- the difference in driving distance or the inclination of the plate material is obtained from the detected value of the driving distance of each pressing cylinder. It can be determined whether or not it is within the uniform range, and the inclination of the plate material can be corrected (relaxed) quickly, so that the occurrence of defective products can be suppressed and the product yield can be dramatically improved.
- the horizontal multi-stage press device is: One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction.
- the horizontal multi-stage press apparatus that constitutes the object to be processed by combining them, heats and presses the plate material by pressing from the outside in the overlapping direction of the objects to be processed, and collectively manufactures a plurality of wooden laminated plywoods
- a plurality of pressing cylinders arranged at a plurality of positions different from each other with respect to the plate surface of the plate material, and pressing the object to be processed from the overlapping direction;
- a cylinder control unit for controlling the driving of the plurality of pressing cylinders individually or collectively, Among the plurality of pressing cylinders, the pressing cylinder disposed at least near the conveyance reference plane of the plate material is configured such that the pressing position with respect to the plate surface of the plate material is unchanged (constitutes a fixed pressing cylinder).
- One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. Combining them together constitutes the object to be processed, and by driving at least one of the pressing plates disposed on both outer sides of the object to be processed in the overlapping direction, the plate material is thermocompression-bonded, and a plurality of wooden laminated plywoods are bundled together.
- a cylinder control unit for controlling the driving of the plurality of pressing cylinders individually or collectively, Of the plurality of pressing cylinders, at least the pressing cylinder disposed near the conveyance reference surface of the plate material may have a constant pressing position with respect to the pressing surface of the pressing plate (constitutes a fixed pressing cylinder). is there.
- the specific aspect of the horizontal type multistage press apparatus which concerns on 2nd invention is as follows.
- One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. Combining them together constitutes the object to be processed, and by driving at least one of the pressing plates disposed on both outer sides of the object to be processed in the overlapping direction, the plate material is thermocompression-bonded, and a plurality of wooden laminated plywoods are bundled together.
- An opening / closing cylinder that is disposed near the center on the pressing surface of the pressing plate, and closes / opens the pressing plate by approaching / separating it, It is arranged at a plurality of different positions with respect to the pressing surface of the pressing plate so as to surround the opening / closing cylinder (radially), and drives the pressing plate to press the objects to be processed from the overlapping direction.
- a plurality of pressing cylinders A cylinder control unit for controlling the driving of the plurality of pressing cylinders individually or collectively, Among the plurality of pressing cylinders, at least the pressing cylinder disposed closer to the conveyance reference plane of the plate material than the opening / closing cylinder has a fixed pressing position with respect to the pressing surface of the pressing plate (constitutes a fixed pressing cylinder). It is characterized by that.
- the drive of a plurality of pressing cylinders for example, four hydraulic cylinders (fluid pressure cylinders)
- the thickness of the plate material after thermocompression bonding can be maintained within the allowable dimension range. Accordingly, it is not necessary to provide a pressing position movement adjusting mechanism for moving and adjusting the pressing position of at least the pressing cylinder that is a sturdy and heavy structure disposed near the conveyance reference plane of the plate material. Can be simplified, and the manufacturing cost required for assembly and installation, and the running cost required for operation and repair can be reduced.
- the total thickness of the object to be processed (plate material + hot plate) can be detected by the driving distance of the pressing cylinder, not the thickness of individual plate materials (laminated plywood) after thermocompression bonding, thus reducing the time required for detection. Can do. Therefore, it is possible to prevent the plate material from being tilted and resulting in uneven thickness due to the delay in control, or the stoppage of the pressing cylinder from being delayed and being out of specification.
- an opening / closing cylinder dedicated to opening / closing the pressing plate for example, one hydraulic cylinder (fluid pressure cylinder)
- an opening / closing cylinder that requires high-speed movement over a long span and a short span are used.
- a pressing cylinder that requires fine movement can be used properly. Therefore, the working efficiency of the hot press is improved by speeding up the opening / closing operation of the pressing plate, and the driving control of the pressing cylinder can be performed with high accuracy without being influenced by the opening / closing operation of the pressing plate.
- the plurality of pressing cylinders are arranged (radially) with respect to the pressing surface of the pressing plate so as to surround the opening / closing cylinder.
- the plate material that is, the pressing plate
- the driving pressure of each pressing cylinder acts on the pressing plate simultaneously and evenly. become.
- At least one of the plurality of (for example, two out of four) pressing cylinders may be configured in a fixed manner in which the pressing position is unchanged with respect to the plate surface of the plate material (the pressing surface of the pressing plate). That's fine. Therefore, even when the remaining (for example, two) pressing cylinders are configured to be movable so that the pressing position can be changed (lifted / lowered) in a direction (for example, the vertical direction) intersecting (orthogonal) with the plate material loading direction, It is possible to simplify the pressing position movement adjusting mechanism of the pressing cylinder.
- the plurality of pressing cylinders may be arranged in a distributed manner such that the pressing positions with respect to the plate surface of the plate material (the pressing surface of the pressing plate) are arranged in a plurality of rows (for example, two rows) along the conveyance reference surface. it can.
- the drive pressure and driving distance of the pressing cylinders can be reduced with respect to a group of pressing cylinders at the same distance from the conveyance reference plane. Common settings can be made, and press control can be executed smoothly.
- the plurality of pressing cylinders are A plurality of fixed pressing cylinders arranged in a (lower) region closer to the conveyance reference plane of the plate (rather than the open / close cylinder), and the pressing position with respect to the plate surface of the plate (the pressing surface of the pressing plate) is unchanged; (Similarly) It is located in the area (upper) far from the conveyance reference plane, and the pressing position on the plate surface of the plate (the pressing surface of the pressing plate) can be changed (up and down) with respect to the pressing position of the fixed pressing cylinder. And a plurality of movable pressing cylinders.
- the pressing position movement adjusting mechanism of the pressing cylinders By using a part of the plurality of pressing cylinders (for example, two of the four cylinders) as fixed pressing cylinders, it is possible to simplify the pressing position movement adjusting mechanism of the pressing cylinders.
- the position of the pressing cylinder on the side far from the conveyance reference plane can be changed as a movable pressing cylinder, so that when the size of the plate changes, it is relative to the plate (long side opposite to the conveyance reference plane). Even if the positional relationship fluctuates, the pressing position of the movable pressing cylinder can be changed.
- an elevating hydraulic cylinder fluid pressure cylinder
- the adjustment width of the pressing cylinder driving pressure (target value tolerance) and the adjustment distance of the pressing cylinder driving distance (setting value tolerance) are kept small. be able to.
- the plurality of pressing cylinders are composed of an even number of fixed pressing cylinders whose pressing positions with respect to the pressing surface of the pressing plate are unchanged, and are arranged so as to be point-symmetrical and / or line-symmetrical with respect to the open / close cylinder. There is a case.
- FIG. 6 is a hydraulic circuit diagram of FIG. 5.
- FIG. 6 is a block diagram showing the electrical configuration of FIG. 5.
- the flowchart which shows the modification of FIG. 11 is a flowchart showing a modification of FIG.
- FIG. 15 is a block diagram showing the electrical configuration of FIG. The flowchart which shows a press preparation process.
- the hydraulic circuit diagram which shows the modification of FIG. The front view which shows the further another example of arrangement
- FIG. 20 is a hydraulic circuit diagram of FIG. 19.
- FIG. 20 is a block diagram showing an electrical configuration of FIG. 19.
- the hydraulic circuit diagram which shows the modification of FIG. The front view which shows the further another example of arrangement
- the hydraulic circuit diagram of FIG. FIG. 24 is a block diagram showing the electrical configuration of FIG.
- FIG. 28 is a block diagram showing the electrical configuration of FIG.
- the flowchart which shows the press processing subroutine for hard materials.
- the flowchart which shows the press processing subroutine for soft materials.
- the hydraulic circuit diagram which shows the modification of FIG.
- the hydraulic circuit diagram which shows the further another example of a press control system.
- FIG. 33 is a block diagram showing an electrical configuration of FIG. 32.
- FIG. 33 is a hydraulic circuit diagram showing a modification of FIG. 32.
- FIG. 1 is a front view showing an example of a horizontal multi-stage press apparatus including a press structure.
- a horizontal multi-stage press apparatus 1 shown in FIG. 1 has a rectangular plate shape in which a large number of horizontal plates, such as a plywood board and a decorative board, are laminated by applying an adhesive to the joining surfaces of a plurality of veneer single plates.
- plate material W1 (plate
- the processed plate material W2 (laminated plywood), which has been heated and pressurized for a predetermined time by the hot press unit 100 and formed to a predetermined thickness, is returned to the horizontal state again by the unloader unit 300 (unloading unit) and unloaded.
- the hot press unit 100 is provided with a pair of upper and lower horizontal beams 101L, 101R, 102L, and 102R arranged at predetermined intervals in the vertical direction (standing direction) and the horizontal direction (conveying direction; carrying-in direction).
- a pair of fixed frames 103F and 103B are disposed in the front-rear direction (pressing direction).
- Moving rollers 105L and 105R (moving members) are attached to the rails 104L and 104R laid on the upper horizontal beams 101L and 101R.
- a plurality of hot plates 130 and a pair or single (for example, a pair) pressing plates 140F and 140B see FIG.
- a plurality of (for example, four) pressing cylinders 150LH, 150RH, 150LL, and 150RL (hydraulic cylinders; fluid pressure cylinders) are inserted into the fixed frames 103F and 103B at predetermined intervals, and the rams 153LH, 153RH, and 153LL are inserted. , 153RL are attached to the press plates 140F and 140B (see FIG. 3). Note that one of the fixed frames 103F and 103B may also serve as a pressing plate.
- a roller conveyor 160 (conveyance body) that supports the plate material W ⁇ b> 1 in an upright state from below and carries it into the hot press unit 100 from the loader unit 200 is disposed.
- the roller conveyor 160 includes a plurality of (for example, four) claw rollers 161 having a width in the front-rear direction across all the carry-in paths K (see FIG. 3) in order to carry in the plate material W1. It is arranged on a machine casing 108 that spans 102L and 102R.
- the processed plate material W1 carried in from the loader unit 200 by the roller conveyor 160 is heated and pressure-bonded by the hot plate 130, and then becomes a processed plate material W2, which is again carried out by the roller conveyor 160 to the unloader unit 300.
- a loader unit 200 is disposed on the carry-in side (upstream side (rear side) in the transport direction) of the hot press unit 100.
- a pair of left and right chain conveyors 202 ⁇ / b> L and 202 ⁇ / b> R (endless bodies) are disposed on the frame 201 with a predetermined interval.
- the chain conveyors 202L and 202R are provided with loader shelves 203.
- a carry-in conveyor 210 (carry-in body) for delivering the plate material W1 in a standing state to the roller conveyor 160 of the hot press unit 100 is disposed.
- the carry-in conveyor 210 includes a plurality of (for example, four) claw rollers 211 having a width in the front-rear direction that straddles all the processed plate materials W1 (carry-in path K; see FIG. 3).
- an unloader unit 300 On the carry-out side (downstream side (front side) in the transport direction) of the hot press unit 100, an unloader unit 300 is disposed.
- a pair of left and right chain conveyors 302L and 302R (endless bodies) are arranged on the frame 301 with a predetermined interval.
- An unloader shelf 303 is provided on the chain conveyors 302L and 302R.
- an unloading conveyor 310 (unloading body) for receiving the processed plate material W2 in the standing state from the roller conveyor 160 of the hot press unit 100 is disposed.
- the carry-out conveyor 310 includes a plurality of (for example, four) claw rollers 311 having a width in the front-rear direction across all the processed plate materials W2.
- FIG. 2 is a plan view showing an example of a press structure
- FIG. 3 is a side view thereof
- FIG. 4 is a side view showing a press closed state.
- the hot press unit 100 heating and pressing unit; press structure
- fixed frames 103F and 103B are fixedly arranged at the front and rear positions in the horizontal direction, and above the fixed frames 103F and 103B in a parallel state.
- Horizontal beams 101L and 101R are provided.
- a plurality of moving rollers 105L and 105R (moving members) movable in the front-rear direction are provided on the rails 104L and 104R provided on the cross beams 101L and 101R.
- the moving rollers 105L and 105R move in a rolling state of a roller or a sliding state by surface contact, and may be any means that can move linearly in the horizontal direction.
- Each moving roller 105L, 105R is connected to the upper side of the hot plate 130 in order to heat the plate material W1 erected in the vertical direction when the press is closed, and the plurality of hot plates 130 are arranged in the front-rear direction.
- a hot plate group is formed by being suspended in parallel. Further, when the press is released, the adjacent hot plates 130 are positioned parallel to the transport direction so as to maintain a predetermined interval so that the processed plate material W1 can be inserted between the hot plates 130 in the hot plate group.
- steam, hot oil, etc. are supplied / exhausted in the inside of the hot plate 130, and the temperature is maintained according to the kind of to-be-processed board
- a pair of front and rear press plates 140F and 140B are provided which are connected to the hot plate 130 of the hot plate group, move the hot plate 130 in the front-rear direction, and perform press closing and press opening.
- the press plates 140F and 140B are disposed to face the respective heat plates 130 located on both sides in the front-rear direction of the hot plate group, and the upper sides of the press plates 140F and 140B are connected to the moving rollers 105L and 105R to move forward and backward. Suspend freely in the direction.
- press plates 140F and 140B are connected to the rams 153LH, 153RH, 153LL, and 153RL of the press cylinders 150LH, 150RH, 150LL, and 150RL provided in the fixed frames 103F and 103B, and the front and rear directions are provided by the rams 153LH, 153RH, 153LL, and 153RL. It can be reciprocated freely. 2 are reciprocated in the front-rear direction with respect to the fixed frames 103F and 103B.
- the rams 153LH, 153RH, 153LL, and 153RL of the respective pressing cylinders 150LH, 150RH, 150LL, and 150RL are respectively configured so that the pressing positions of the pressing plates 140F and 140B with respect to the pressing surface 141 are unchanged. It is fixed to 140B.
- An open / close cylinder 180 (hydraulic cylinder; fluid pressure cylinder) that closes and opens the press plates 140F and 140B by approaching and separating them is disposed on both outer sides of the press plates 140F and 140B and in the vicinity of the center of the press surface 141. (See FIGS. 3 and 4).
- the upright processed plate material W1 is carried between the hot plates 130 with one of the long sides of the rectangular shape (lower side) as the conveyance reference plane B (see FIG. 5).
- a large number of the to-be-processed plate material W1 and the hot plate 130 are overlapped in the thickness direction to constitute an object to be processed W for hot pressing.
- the open / close cylinder 180 closes the pressing plates 140F and 140B.
- the pressing cylinders 150LH, 150RH, 150LL, and 150RL have a predetermined allowable dimension over the entire pressing surface 141, for example, even if the size and material of the processing target plate material W1 change.
- the heating and pressing process is performed under individual drive control so as to be within the range.
- the opening / closing cylinder 180 opens the pressing plates 140F and 140B.
- FIG. 5 is a front view showing an example of the arrangement relationship of the press control system
- FIG. 6 is a hydraulic circuit diagram thereof
- FIG. 7 is a block diagram showing its electrical configuration.
- the four pressing cylinders 150LH, 150RH, 150LL, and 150RL are arranged with respect to the pressing surface 141 of the pressing plates 140F and 140B so as to surround the opening / closing cylinder 180 (radially).
- the pressing cylinders 150LH, 150RH, 150LL, and 150RL are arranged so as to be point-symmetrical and line-symmetric with respect to the opening / closing cylinder 180, and thus are applied to the pressing cylinders 150LH, 150RH, 150LL, and 150RL.
- the driving pressure that is, the cylinder internal pressure acts simultaneously and evenly on the pressing plates 140F and 140B.
- the four pressing cylinders 150LH, 150RH, 150LL, and 150RL are dispersedly arranged so that the pressing positions of the pressing plates 140F and 140B with respect to the pressing surface 141 are aligned in two rows along the conveyance reference surface B (roller conveyor 160).
- the upper left pressing cylinder 150LH and the upper right pressing cylinder 150RH arranged in the upper region farther from the conveyance reference plane B than the open / close cylinder 180 are the upper left row and the lower left pressing cylinder 150LL arranged in the lower region near the conveyance reference plane B and
- the lower right pressing cylinder 150RL constitutes the lower row.
- the pressing cylinders 150LH, 150RH, 150LL, and 150RL are pressure cylinder linear encoders 151LH and 151RH that detect the amount of decrease in the overall thickness of the workpiece W as the amount of movement (drive distance) of the rams 153LH, 153RH, 153LL, and 153RL. , 151LL, 151RL (movement amount detection means; distance detection means), and pressure cylinder pressure sensor 152LH for detecting the pressing force of the pressing plates 140F, 140B as the cylinder internal pressure (driving pressure) of the pressing cylinders 150LH, 150RH, 150LL, 150RL. , 152RH, 152LL, 152RL (pressure detection means).
- the open / close cylinder 180 is provided with an open / close cylinder pressure switch 181 (pressure detection means) for detecting the closing / opening of the press plates 140F, 140B by the level of the cylinder internal pressure.
- a ram movement amount display unit 106LH, 106RH, 106LL, 106RL and a cylinder internal pressure display unit 107LH, 107RH, 107LL, 107RL are provided, and linear encoders 151LH, 151RH, 151LL, 151RL and pressure sensors 152LH, 152RH, 152LL, 152RL are provided.
- the detected value is displayed via a transmitter (transmitter) or the like.
- each press cylinder hydraulic pump 154 driven by the electric motor 108 and each press cylinder 150LH, 150RH, 150LL, 150RL.
- the electromagnetic switching valves 155LH, 155RH, 155LL, 155RL of the type are respectively arranged.
- Each electromagnetic switching valve 155LH, 155RH, 155LL, 155RL connects the hydraulic pump 154 and the press cylinders 150LH, 150RH, 150LL, 150RL in the closing direction of the press panels 140F, 140B when switched from the neutral a position to the b position.
- the press plates 140F and 140B are connected in the opening direction.
- the electromagnetic switching valves 155LH, 155RH, 155LL, and 155RL are controlled by, for example, PWM control based on a duty ratio (also commonly referred to as duty control). It is desirable to apply
- a 4-port 3-position switching type electromagnetic switching valve 183 is disposed between the variable displacement type open / close cylinder hydraulic pump 182 driven by the electric motor 108 and the open / close cylinder 180.
- the electromagnetic switching valve 183 connects the hydraulic pump 154 and the opening / closing cylinder 180 in the closing direction of the pressing plates 140F and 140B when the neutral a position is switched to the b position, and also when the switching position is switched to the c position. Connect in the opening direction of 140F and 140B.
- the control board 20 that is a cylinder control unit of the press control system includes a CPU 21 that is an arithmetic device, a ROM 23 that is a read-only storage device, and a readable / writable main storage device that is a work area. And the input / output interface (I / F) 24. These devices are connected via a bus 25 so as to be able to transmit and receive each other.
- various control programs 23a, 23b, 23c for executing the press control and inclination calculation for calculating the inclination of the processed plate material W1 at the time of heating and pressing as the inclination of the pressing plates 140F, 140B (pressing surface 141).
- selection tables 23e and 23f for initial setting of the size and material of the processed plate material W1 are stored and stored in advance.
- a size selection switch 10 a switch signal when the size of the plate W1 to be processed is manually selected or input by a push button or the like;
- Material selection switch 11 A switch signal when the material (hard material, soft material) of the processed plate material W1 is artificially selected or input by a push button or the like;
- -Opening / closing cylinder pressure switch 181 Cylinder internal pressure level detection signal when the pressing plates 140F, 140B are closed / opened by the opening / closing cylinder 180; ⁇ Pressure cylinder linear encoders 151LH, 151RH, 151LL, 151RL: detection signals of the movement amounts of the rams 153LH, 153RH, 153LL, 153RL; Pressing cylinder pressure sensors 152LH, 152RH, 152LL, 152RL: cylinder internal pressure detection signals of the pressing cylinders 150LH, 150RH
- Pressing cylinders 150LH, 150RH, 150LL, 150RL Control for pressing and pressing the pressing plates 140F, 140B (pressing surface 141) and correcting (relaxing) the inclination of the object to be processed W (processing plate material W1).
- FIG. 8 corresponds to the press preparation processing program 23a of FIG.
- FIG. 9 corresponds to the hard material press processing program 23b
- FIG. 10 corresponds to the soft material press processing program 23c.
- the size selection switch 10 and the material selection switch 11 use the size (6 scale material, 8 scale material, 10 scale material, etc.) and material (hard) of the plate material W1 to be processed. Material, soft material, etc.). Based on the input contents, fine adjustment is performed with reference to the selection tables 23e and 23f (FIG. 7) of the ROM 23. Specifically, in S2, the set value S of the ram movement amount and the target value P of the cylinder internal pressure are finely adjusted according to the size of the plate material W1 to be processed. Next, the material selected in S3 is confirmed. If the material is a hard material (YES in S3), the hard material press process is executed in S4 and the press preparation process is completed. If the material is a soft material, If (NO in S3), the soft material pressing process is executed in S6.
- FIG. 9 shows the hard material press processing subroutine (S4) of FIG.
- the plate material W1 to be processed is a hard material
- each cylinder internal pressure is allowed to reach a predetermined target range P ⁇ ⁇ P as the pressing plates 140F and 140B are pressed by the pressing cylinders 150LH, 150RH, 150LL, and 150RL.
- the ram movement amount of each of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is within a predetermined set range S ⁇ ⁇ S
- the inclination calculation program 23d uses the detected value of each ram movement amount.
- the inclination of the processing plate material W1 is calculated as the inclination of the pressing plates 140F and 140B (pressing surface 141). If the inclination exceeds a predetermined value, it is considered that an inclination to be corrected (relaxed) occurs in the processed plate material W1, and therefore the upper and lower limit values P + ⁇ P, P ⁇ of the target range P ⁇ ⁇ P related to the cylinder internal pressure. ⁇ P is expanded to P + 2 ⁇ P and P-2 ⁇ P, respectively, and the corresponding cylinder internal pressure is increased (or reduced).
- each ram movement amount is within the set range S ⁇ ⁇ S as shown in FIG. 5 (YES in S45)
- the inclination of the press plates 140F, 140B (pressing surface 141) is determined from the detected value of each ram movement amount in S46. Calculate.
- the magnitude of the slope calculated in S46 is determined.
- a predetermined value for example, 5 °
- the inclination is corrected (relaxed) by judging from the inclination of the press plates 140F and 140B (pressing surface 141). Further, a pressing cylinder that needs to be pressed (or reversed in some cases) is determined. Further, in S49, when further pressing is performed to correct (relax) the inclination, it is confirmed whether the internal pressure of the pressing cylinder is P + 2 ⁇ P (for example, 7.0 + 0.4 MPa) or less. It is confirmed whether the internal pressure is P-2 ⁇ P (for example, 7.0-0.4 MPa) or more.
- the electromagnetic switching valves 155LH, 155RH, 155LL, 155RL, and 183 are switched to the c position, respectively, and all the pressing cylinders 150LH, 150RH, 150LL, 150RL, and the opening / closing cylinders are switched.
- the press plates 140F and 140B are driven to open by 180, and the driving is stopped by the detection of the pressure sensors 152LH, 152RH, 152LL, and 152RL and the pressure switch 181 to end the hard material pressing process.
- each cylinder internal pressure is made to reach the target range P ⁇ ⁇ P, and the ram movement amount of each of the pressing cylinders 150LH, 150RH, 150LL, 150RL at that time is within the setting range S ⁇ ⁇ S, and the pressing plates 140F, 140B.
- the cylinder internal pressure is further increased to the allowable range P + 2 ⁇ P to correct (relax) the inclination.
- the driving of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is individually controlled with emphasis on pressure.
- the inclination of the pressing plates 140F and 140B is performed in the process of finishing the entire thickness of the object to be processed W (processed plate material W1 + hot plate 130) to a predetermined allowable dimension. Therefore, the occurrence of defective products can be suppressed and the product yield can be improved.
- FIG. 10 shows the soft material press processing subroutine (S6) of FIG.
- each ram movement amount is set to the lower limit value S ⁇ S of the predetermined setting range S ⁇ ⁇ S in accordance with the pressing of the pressing plates 140F, 140B by the pressing cylinders 150LH, 150RH, 150LL, 150RL.
- the pressure discs 140F and 140B pressing force
- the inclination of the surface 141) is calculated.
- each pressing cylinder 150LH, 150RH, 150LL, 150RL is set to the target range P ⁇ ⁇ P (eg, It is confirmed by the pressure sensors 152LH, 152RH, 152LL, and 152RL whether or not the upper limit value P + ⁇ P (for example, 7.2 MPa) is 7.0 ⁇ 0.2 MPa). If each cylinder internal pressure is equal to or less than the upper limit value P + ⁇ P as shown in FIG. 5 (YES in S65), the inclination of the press plates 140F, 140B (press surface 141) is calculated from the detected value of each ram movement amount in S66.
- the magnitude of the slope calculated in S66 is determined in S67. If the inclination exceeds a predetermined value (for example, 5 °) (NO in S67), in S68, the inclination is corrected (relaxed) by judging from the inclination of the press plates 140F and 140B (pressing surface 141). Further, a pressing cylinder that needs to be pressed is determined. Further, in S69, it is confirmed whether the ram movement amount of the pressing cylinder that is further pressed to correct (relax) the inclination is equal to or less than the upper limit value S + ⁇ S (for example, 1790 mm) of the setting range S ⁇ ⁇ S.
- a predetermined value for example, 5 °
- S68 the inclination is corrected (relaxed) by judging from the inclination of the press plates 140F and 140B (pressing surface 141). Further, a pressing cylinder that needs to be pressed is determined. Further, in S69, it is confirmed whether the ram movement amount of the pressing
- the electromagnetic switching valves 155LH, 155RH, 155LL, 155RL, and 183 are respectively switched to the c position, and all the pressing cylinders 150LH, 150RH, 150LL, 150RL and the opening / closing cylinder 180 are switched.
- the pressing plates 140F and 140B are driven to open, and the driving is stopped by the detection of the pressure sensors 152LH, 152RH, 152LL, and 152RL and the pressure switch 181 to finish the soft material pressing process.
- Soft materials such as cedar and paulownia that are soft and have a relatively low elasticity and repulsive force can easily be reduced in thickness by pressing, and the thickness after thermocompression bonding can be achieved even if the cylinder pressure is within the target range P ⁇ ⁇ P. Tends to be thinner than specified (particularly at the cylinder pressing position).
- each ram movement amount is made to reach the lower limit value S ⁇ S of the set range S ⁇ ⁇ S, and the cylinder internal pressures of the respective press cylinders 150LH, 150RH, 150LL, 150RL at that time are lower than the upper limit value P + ⁇ P,
- the ram movement amount is further increased to the upper limit value S + ⁇ S to correct (relax) the inclination.
- the driving of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is individually controlled with emphasis on distance.
- the press plates 140F and 140B Since the inclination can be corrected (relaxed), the generation of defective products can be suppressed and the product yield can be improved.
- the thickness of the processed plate material W2 is kept within the allowable range by individually controlling the driving of the pressing cylinders 150LH, 150RH, 150LL, and 150RL. Will be able to hold. Therefore, the pressing cylinders 150LH, 150RH, 150LL, and 150RL, which are sturdy and heavy structures, do not have to be provided with a pressing position movement adjusting mechanism for moving and adjusting the pressing position. Manufacturing costs required for installation and running costs required for operation and repair can be reduced.
- the detection values (cylinder internal pressure and ram movement amount) obtained from the pressing cylinders 150LH, 150RH, 150LL, and 150RL are controlled.
- the entire thickness of the object to be processed W is detected not by the individual thicknesses of the processed plate material W2 but by the amount of ram movement, the time required for detection can also be reduced.
- the inclination of the press plates 140F and 140B occurs, resulting in uneven thickness of the processed plate material W2, or the stop of the press cylinders 150LH, 150RH, 150LL, and 150RL is delayed and out of specification. The thickness can be prevented.
- an opening / closing cylinder 180 dedicated to opening and closing the pressing plates 140F and 140B is provided, so that the opening / closing cylinder 180 that requires high-speed movement over a long span and fine movement over a short span
- the pressing cylinders 150LH, 150RH, 150LL, and 150RL that require a large number can be used properly. Therefore, the work efficiency of the hot press is improved by accelerating the opening / closing operation of the pressing plates 140F, 140B, and the drive control of the pressing cylinders 150LH, 150RH, 150LL, 150RL is not affected by the opening / closing operation of the pressing plates 140F, 140B. Can be done with high accuracy.
- Servo cylinders 150LH ′, 150RH ′, 150LL ′, 150RL ′ which are servo actuators, are used. As described above, the servo cylinders 150LH ′, 150RH ′, 150LL ′, and 150RL ′ are combined and integrated with the servo valve (or it can be seen that the servo valve is incorporated).
- FIG. 12 is a flowchart showing a modification of FIG. In the hard material press processing subroutine (S4) shown in FIG. 12, as an index for determining whether or not the ram movement amount (drive distance) of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is within a uniform range, FIG. Instead of the inclination of the press plates 140F and 140B (pressing surface 141) calculated in S46 (that is, the inclination of the processed plate material W1), the linear encoders 151LH, 151RH, 151LL, and 151RL (movement amount detection means; distance detection means) are detected. In addition, the difference (S46 ′) in each ram movement amount is used. Therefore, in this modification, the inclination calculation program 23d shown in FIG. 7 can be omitted to simplify the control.
- S4 hard material press processing subroutine
- the width (25 mm) between the ram movement amount (1750 mm) of the lower row pressing cylinders 150LL and 150RL and the ram movement amount (1775 mm) of the upper right pressing cylinder 150RH exceeds the maximum allowable width (20 mm) (S47). 'No'). Therefore, it is determined that it is necessary to further press the pressing cylinders 150LL and 150RL in the lower row (S48 ').
- FIG. 13 is a flowchart showing a modification of FIG.
- FIG. instead of the inclination of the press plates 140F and 140B (pressing surface 141) calculated in S66 (that is, the inclination of the processed plate material W1), the linear encoders 151LH, 151RH, 151LL, and 151RL (movement amount detection means; distance detection means) are detected. Further, the difference (S66 ′) between the ram movement amounts is used. Therefore, also in this modified example, the inclination calculation program 23d shown in FIG. 7 can be omitted to simplify the control.
- the width (25 mm) between the ram movement amount (1750 mm) of the lower row pressing cylinders 150LL and 150RL and the ram movement amount (1775 mm) of the upper right pressing cylinder 150RH exceeds the maximum allowable width (20 mm) (S67). 'No'). Therefore, it is determined that it is necessary to further press the pressing cylinders 150LL and 150RL in the lower row (S68 ').
- FIG. 14 is a front view showing another example of the arrangement relationship of the press control system
- FIG. 15 is a hydraulic circuit diagram thereof
- FIG. 16 is a block diagram showing its electrical configuration.
- the lower row pressing cylinders 150LL and 150RL (hydraulic cylinders; fluid pressure cylinders) correspond to the pressing surfaces 141 of the pressing plates 140F and 140B. It constitutes a fixed pressing cylinder whose pressing position is unchanged.
- the upper rows of pressing cylinders 150LH and 150RH constitute a movable pressing cylinder in which the pressing position with respect to the pressing surface 141 can be changed in the vertical direction.
- lift cylinders 170LH and 170RH are provided as pressing position movement adjusting mechanisms for the upper-row pressing cylinders 150LH and 150RH.
- the elevating cylinders 170LH and 170RH are provided with elevating cylinder photoelectric sensors 171LH and 171RH (movement detecting means) for detecting the ascending / descending positions of the pressing cylinders 150LH and 150RH.
- FIG. 15 there is a four-port, three-position switching type electromagnetic switching between a variable displacement type lifting cylinder hydraulic pump 172 driven by the electric motor 108 and each lifting cylinder 170LH, 170RH.
- a valve 173 is arranged.
- the electromagnetic switching valve 173 When the electromagnetic switching valve 173 is switched from the neutral a position to the b position, the hydraulic pump 172 and the lifting cylinders 170LH and 170RH are connected in the ascending direction of the pressing cylinders 150LH and 150RH, and are switched to the c position. Similarly, connect in the downward direction.
- a control output signal for raising and lowering the pressing cylinders 150LH and 150RH in accordance with the input of the size selection switch 10 is sent to the control board 20 (cylinder) via the input / output interface 24. From the control unit) to the lifting cylinders 170LH and 170RH. On the other hand, the position detection signals of the photoelectric sensors 171LH and 171RH are input to the control board 20 via the input / output interface 24 as the pressing cylinders 150LH and 150RH are raised and lowered by the lifting cylinders 170LH and 170RH.
- the size (6 scale material, 8 scale material, 10 scale material, etc.) and material (hard) of the plate material W1 to be processed are selected by the size selection switch 10 and the material selection switch 11 in S1.
- Material, soft material, etc. Based on the input content, in S102, the electromagnetic switching valve 173 is switched to the b position or the c position in accordance with the size of the processed plate material W1, and the elevating cylinders 170LH and 170RH are driven up or down, and the photoelectric sensors 171LH, The raising / lowering drive is stopped by detection of 171RH.
- the material selected in S3 is confirmed. If the material is a hard material (YES in S3), the hard material press process is executed in S4 and the press preparation process is completed. If the material is a soft material, If (NO in S3), the soft material pressing process is executed in S6.
- the upper row pressing cylinders 150LH and 150RH are movable pressing cylinders capable of changing the pressing position. Therefore, even if the height position of the upper side of the processed plate material W1 changes when the size of the processed plate material W1 changes, the processed plate material W1 is adjusted by adjusting the pressing positions of the upper rows of pressing cylinders 150LH and 150RH. It is possible to suppress the occurrence of tilt.
- FIG. 18 is a hydraulic circuit diagram showing a modification of FIG. As in the modified example 1-1 (FIG. 11), servo cylinders 150LH ′, 150RH ′, 150LL ′, 150RL ′ are also used in the pressing cylinder shown in FIG. Therefore, also in this modified example, the hydraulic circuit can be simplified and precisely controlled.
- FIG. 19 is a front view showing still another example of the arrangement relationship of the press control system
- FIG. 20 is a hydraulic circuit diagram thereof
- FIG. 21 is a block diagram showing its electrical configuration.
- the hot press unit 100 heating and pressing unit; press structure
- the lower row pressing cylinders 150LL and 150RL in addition to the upper row pressing cylinders 150LH and 150RH (hydraulic cylinder; fluid pressure cylinder), the lower row pressing cylinders 150LL and 150RL.
- Hydraulic cylinder; fluid pressure cylinder also constitutes a movable pressing cylinder in which the pressing position of the pressing plates 140F and 140B with respect to the pressing surface 141 can be changed in the vertical direction.
- elevating cylinders 170LL and 170RL are added as pressing position movement adjusting mechanisms for the pressing cylinders 150LL and 150RL in the lower row.
- the elevating cylinders 170LL and 170RL include elevating cylinder photoelectric sensors 171LL and 171RL (movement detecting means) for detecting the ascending / descending positions of the pressing cylinders 150LL and 150RL.
- the electromagnetic switching valve 173 is also disposed between the lift cylinder hydraulic pump 172 and the lift cylinders 170LL and 170RL. Therefore, when the electromagnetic switching valve 173 is switched from the neutral a position to the b position, the hydraulic pump 172 and the lifting cylinders 170LL and 170RL are connected in the ascending direction of the pressing cylinders 150LL and 150RL and are switched to the c position. Similarly, connect in the downward direction.
- a control output signal for raising and lowering the pressing cylinders 150LL and 150RL in accordance with the input of the size selection switch 10 is sent to the control board 20 (cylinder) via the input / output interface 24. From the control unit) to the lifting cylinders 170LL and 170RL. On the other hand, the position detection signals of the photoelectric sensors 171LL and 171RL are input to the control board 20 via the input / output interface 24 as the pressing cylinders 150LL and 150RL are raised and lowered by the lifting cylinders 170LL and 170RL.
- FIG. 22 is a hydraulic circuit diagram showing a modification of FIG. As in the modified example 1-1 (FIG. 11), servo cylinders 150LH ′, 150RH ′, 150LL ′, 150RL ′ are also used in the pressing cylinder shown in FIG. Therefore, also in this modified example, the hydraulic circuit can be simplified and precisely controlled.
- FIG. 23 is a front view showing still another example of the arrangement relationship of the press control system
- FIG. 24 is a hydraulic circuit diagram thereof
- FIG. 25 is a block diagram showing its electrical configuration.
- the hot press section 100 heat pressurizing section; press structure
- the two pressing cylinders 150L and 150R hydroaulic cylinders; fluid pressure cylinders
- the separation distance from the reference plane B is substantially the same as that of the opening / closing cylinder 180 (hydraulic cylinder; fluid pressure cylinder), and they are arranged on the left and right sides of the opening / closing cylinder 180.
- Each of the pressing cylinders 150L and 150R includes pressing cylinder linear encoders 151L and 151R (movement amount detection means; distance detection means) that detect a reduction amount of the entire thickness of the workpiece W as a ram movement amount (drive distance); Pressure cylinder pressure sensors 152L and 152R (pressure detection means) for detecting the pressures of the pressure plates 140F and 140B as cylinder internal pressures (drive pressures) of the pressure cylinders 150L and 150R are provided. Elevating cylinders 170L and 170R (hydraulic cylinders; fluid pressure cylinders) are provided as a mechanism for adjusting the pressing position of the pressing cylinders 150L and 150R.
- the elevating cylinders 170L and 170R include elevating cylinder photoelectric sensors 171L and 171R (movement detecting means) for detecting the ascending / descending positions of the pressing cylinders 150L and 150R.
- a four-port, three-position switching electromagnetic switch is provided between the variable displacement type press cylinder hydraulic pump 154 driven by the electric motor 108 and the press cylinders 150L and 150R. Valves 155L and 155R are respectively disposed.
- the electromagnetic switching valves 155L and 155R are switched from the neutral a position to the b position, the hydraulic pump 154 and the pressing cylinders 150L and 150R are connected in the closing direction of the pressing plates 140F and 140B and are switched to the c position. In the same way, the press plates 140F and 140B are connected in the opening direction.
- a four-port three-position switching type electromagnetic switching valve 173 is disposed between the variable displacement type lift cylinder hydraulic pump 172 driven by the electric motor 108 and the lift cylinders 170L, 170R.
- the electromagnetic switching valve 173 is switched from the neutral a position to the b position, the hydraulic pump 172 and the lifting cylinders 170L and 170R are connected in the ascending direction of the pressing cylinders 150L and 150R, and are switched to the c position. Similarly, connect in the downward direction.
- the pressing cylinders 150L and 150R are configured with two movable (elevating and lowering) types in which the pressing positions of the pressing plates 140F and 140B with respect to the pressing surface 141 can be changed in the vertical direction, thereby configuring the hot press unit 100. Can be further simplified.
- the block diagram of FIG. 25 is configured based on the changes in FIGS. 23 and 24. The difference from the block diagrams (FIGS. 7, 16, and 21) shown in the first to third embodiments is the same as the block diagram of FIGS. Since it is apparent at first glance from the above description, the description of FIG. 25 is omitted.
- FIG. 26 is a hydraulic circuit diagram showing a modification of FIG. As in the modified example 1-1 (FIG. 11), servo cylinders 150L ′ and 150R ′ are also used in the pressing cylinder shown in FIG. Therefore, also in this modified example, the hydraulic circuit can be simplified and precisely controlled.
- FIG. 27 is a hydraulic circuit diagram showing still another example of the press control system
- FIG. 28 is a block diagram showing its electrical configuration.
- a method of controlling the driving of a plurality of (for example, four) pressing cylinders collectively (individually) instead of individually (individually individually) is adopted. This is the same as Example 1 (FIG. 5).
- variable displacement type press cylinder hydraulic pump 154 driven by the electric motor 108 and the press cylinders 150LH, 150RH, 150LL, 150RL (hydraulic pressure)
- a single electromagnetic switching valve 155 of a four-port three-position switching type is disposed between the cylinder and the fluid pressure cylinder).
- the electromagnetic switching valve 155 connects the hydraulic pump 154 and the pressing cylinders 150LH, 150RH, 150LL, and 150RL simultaneously in the closing direction of the pressing plates 140F and 140B when switched from the neutral a position to the b position, and is also in the c position. When switched, the press plates 140F and 140B are connected in the opening direction.
- the inclination calculation program is omitted in the ROM 23 of the control board 20 (cylinder control unit).
- the hard material press processing subroutine (S4) executed after the press preparation processing (see FIG. 8) is expressed as shown in FIG. 29, and the soft material press processing subroutine (S6) is shown in FIG. It is expressed as
- FIG. 29 shows a hard material press processing subroutine (S4) in place of FIG.
- S4 hard material press processing subroutine
- each cylinder internal pressure is allowed to reach the target range P ⁇ ⁇ P in accordance with the pressing of the pressing plates 140F and 140B by the pressing cylinders 150LH, 150RH, 150LL, and 150RL. If any of the ram movement amounts detected at that time falls below S ⁇ S, which is the lower limit value of the predetermined set range S ⁇ ⁇ S, the processed plate material W1 (that is, the pressing plates 140F and 140B (the pressing surface) 141)) is likely to be tilted.
- S ⁇ S which is the lower limit value of the predetermined set range S ⁇ ⁇ S
- the cylinder internal pressure of each of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is increased and added within an allowable range (for example, P + 2 ⁇ P) set higher than the target range P ⁇ ⁇ P. Press drive.
- the ram movement amount in S40 based on the set value S of the ram movement amount finely adjusted according to the size of the plate material W1 and the target value P of the cylinder internal pressure (see S2 in FIG. 8), the ram movement amount in S40.
- Set range S ⁇ ⁇ S for example, 1770 ⁇ 15 mm
- a target range P ⁇ ⁇ P for example, 7.0 ⁇ 0.2 MPa
- the electromagnetic switching valve 183 is switched to the b position in S42, and the pressing plates 140F and 140B are driven to close by the opening / closing cylinder 180, and the pressure switch 181 The drive is stopped by detecting this.
- the pressing plates 140F and 140B are simultaneously pressed and driven by the pressing cylinders 150LH, 150RH, 150LL, and 150RL.
- the pressure sensors 152LH, 152RH, 152LL, and 152RL indicate whether the internal pressure of each of the pressing cylinders 150LH, 150RH, 150LL, and 150RL has reached the target range P ⁇ ⁇ P (here, 7.0 ⁇ 0.2 MPa). Check.
- each ram movement amount is within the set range S ⁇ ⁇ S (here, 1770 ⁇ 15 mm) in S145. It is confirmed by the linear encoders 151LH, 151RH, 151LL, 151RL whether or not it has been reached. As shown in FIG. 5, when the ram movement amount of the pressing cylinders 150LL and 150RL in the lower row is out of the setting range S ⁇ ⁇ S (NO in S145), one of the ram movement amounts is then set in the setting range S in S146. It is confirmed whether it is below S ⁇ S (here, 1755 mm), which is the lower limit of ⁇ ⁇ S.
- the drive is opened, the drive is stopped by the detection of the pressure switch 181, and the hard material pressing process is terminated. If any of the ram movement amounts exceeds the upper limit value S + ⁇ S (NO in S146), there is a high possibility of a defective product, so an alarm is issued in S148 and the process is interrupted.
- the press plates 140F and 140B tend to tilt due to the rebound (spring back) phenomenon. Therefore, first, the internal pressure of each cylinder is made to reach the target range P ⁇ ⁇ P, and the presence / absence of the inclination of the press plates 140F and 140B and the propriety of the press drive (pressure increase) are determined (estimated) from the ram movement amount at that time. To do. If it is determined that “inclination exists” and “pressure increase is possible”, the cylinder internal pressure is further increased within the allowable range P + 2 ⁇ P to correct (relax) the inclination.
- the driving of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is collectively controlled with emphasis on pressure.
- the inclination of the pressing plates 140F and 140B is performed in the process of finishing the entire thickness of the object to be processed W (processed plate material W1 + hot plate 130) to a predetermined allowable dimension. Therefore, the occurrence of defective products can be suppressed and the product yield can be improved.
- FIG. 30 shows a soft material press processing subroutine (S6) instead of FIG.
- each ram movement amount is set to the lower limit value S ⁇ S of the predetermined setting range S ⁇ ⁇ S in accordance with the pressing of the pressing plates 140F, 140B by the pressing cylinders 150LH, 150RH, 150LL, 150RL.
- P ⁇ P which is the lower limit value of the predetermined target range P ⁇ ⁇ P
- the processed plate material W1 ie, the press plates 140F and 140B (pressing surface 141)
- the ram movement amount is additionally pressed within the set range S ⁇ ⁇ S.
- the ram movement amount in S60 based on the set value S of the ram movement amount finely adjusted according to the size of the plate material W1 and the target value P of the cylinder internal pressure (see S2 in FIG. 8), the ram movement amount in S60.
- Set range S ⁇ ⁇ S for example, 1770 ⁇ 20 mm
- a target range P ⁇ ⁇ P for example, 7.5 ⁇ 0.2 MPa
- the electromagnetic switching valve 183 is switched to the b position in S62, and the pressure discs 140F and 140B are driven to close by the open / close cylinder 180, and the pressure switch 181 The drive is stopped by detecting this.
- the pressing plates 140F and 140B are simultaneously pressed and driven by the pressing cylinders 150LH, 150RH, 150LL, and 150RL.
- the linear encoders 151LH, 151RH, 151LL, and 151RL confirm whether the movement amount of each of the rams 153LH, 153RH, 153LL, and 153RL has reached the lower limit value S ⁇ S (here, 1750 mm) of the setting range S ⁇ ⁇ S. To do.
- each ram movement amount is set in the setting range S ⁇ ⁇ S (here, 1770 ⁇ 20 mm) is reconfirmed. If each ram movement amount is within the set range S ⁇ ⁇ S as shown in FIG. 5 (YES in S165), each cylinder internal pressure is within the target range P ⁇ ⁇ P (here, 7.5 ⁇ 0.2 MPa) in S166. Is confirmed by the pressure sensors 152LH, 152RH, 152LL, and 152RL. If all the cylinder internal pressures are outside the target range P ⁇ ⁇ P as shown in FIG.
- any one of the cylinder internal pressures becomes the lower limit value P ⁇ P of the target range P ⁇ ⁇ P ( Here, it is confirmed whether it is less than 7.3 MPa).
- the amount of ram movement of the pressing cylinders 150LL and 150RL in the lower row is equal to the lower limit value S- ⁇ S (YES in S164) and all the cylinder internal pressures are less than the lower limit value S- ⁇ S (YES in S167).
- the plate material W1 to be processed that is, the pressing plates 140F and 140B (pressing surface 141)
- the plate material W1 to be processed has a margin for the pressing process. Therefore, in order to correct (relax) the inclination, the process returns to S63 and the simultaneous pressing drive is continued.
- step S72 when each ram movement amount is within the set range S ⁇ ⁇ S (YES in S165), when each cylinder internal pressure is within the target range P ⁇ ⁇ P (YES in S166), the inclination is corrected (YES in S166).
- step S72 the pressing operation of all the pressing cylinders 150LH, 150RH, 150LL, and 150RL is stopped.
- step S73 after a predetermined time has elapsed (for example, after 10 seconds), the electromagnetic switching valves 155 and 183 are switched to the c position, and the pressing plates 140F and 140B are moved by all the pressing cylinders 150LH, 150RH, 150LL, 150RL and the opening / closing cylinder 180.
- the drive is opened, the drive is stopped by the detection of the pressure switch 181, and the soft material pressing process is terminated. If any of the ram movement amounts exceeds the upper limit value S + ⁇ S (NO in S165), and if any of the cylinder internal pressures exceeds the upper limit value P + ⁇ P (NO in S167), it becomes a defective product. Since the possibility is great, an alarm is issued in S168 and the process is interrupted.
- each ram movement amount is made to reach the lower limit value S ⁇ S of the setting range S ⁇ ⁇ S, and from each cylinder internal pressure at that time, it is determined whether or not the pressing disks 140F and 140B are inclined and whether or not the pressing drive can be continued ( Infer.
- the ram movement amount is further within the set range S ⁇ ⁇ S, and the pressing drive is continued to correct (relax) the inclination.
- the driving of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is collectively controlled with an emphasis on distance.
- the press plates 140F and 140B Since the inclination can be corrected (relaxed), the generation of defective products can be suppressed and the product yield can be improved.
- the overall configuration of the press control system is the first embodiment (FIG. 5). (FIG. 10) is further simplified.
- the processed plate material W1 that is, the pressing plates 140F and 140B (the pressing surface 141)
- the pressing is performed by controlling at least one of the ram moving amount and the cylinder internal pressure. The inclination can be eliminated in the course of collectively controlling the driving of the cylinders 150LH, 150RH, 150LL, and 150RL.
- FIG. 31 is a hydraulic circuit diagram showing a modification of FIG.
- Servo motor 108 ' is used.
- the servo motor 108 ′ is provided with a rotary encoder 156 for detecting the rotation direction and the rotation speed.
- the electromagnetic switching valve 155 and the linear encoders 151LH, 151RH, 151LL, 151RL of FIG. 27 are not required in FIG. 31, and the hydraulic circuit can be simplified.
- the servo motor 108 ' has a function of controlling the rotation speed (flow velocity), the ram movement amount and the ram of the pressing cylinders 150LH', 150RH ', 150LL', 150RL 'when the workpiece W is heated and pressed.
- the moving speed can be adjusted in combination, and more precise control is possible.
- FIG. 32 is a hydraulic circuit diagram showing still another example of the press control system
- FIG. 33 is a block diagram showing its electrical configuration.
- a method of controlling the driving of a plurality of (for example, four) pressing cylinders collectively (individually) instead of individually (individually individually) is adopted. This is the same as Example 2 (FIG. 14).
- variable displacement type press cylinder hydraulic pump 154 driven by the electric motor 108 and the press cylinders 150LH, 150RH, 150LL, 150RL (hydraulic pressure)
- a single electromagnetic switching valve 155 of a four-port three-position switching type is disposed between the cylinder and the fluid pressure cylinder).
- the electromagnetic switching valve 155 connects the hydraulic pump 154 and the pressing cylinders 150LH, 150RH, 150LL, and 150RL simultaneously in the closing direction of the pressing plates 140F and 140B when switched from the neutral a position to the b position, and is also in the c position. When switched, the press plates 140F and 140B are connected in the opening direction.
- the tilt calculation program is omitted in the ROM 23 of the control board 20 (cylinder control unit).
- the hard material press processing subroutine (S4) executed after the press preparation processing (see FIG. 17) is expressed as shown in FIG. 29, and the soft material press processing subroutine (S6) is shown in FIG. It is expressed as
- the overall configuration of the press control system is the second embodiment (FIG. 14).
- FIG. 17 is further simplified.
- the ram movement amount By controlling at least one of the cylinder internal pressures, the inclination can be eliminated in the course of collectively controlling the driving of the pressing cylinders 150LH, 150RH, 150LL, and 150RL.
- FIG. 34 is a hydraulic circuit diagram showing a modification of FIG. As in the fifth modification (FIG. 31), the electric motor shown in FIG. 34 also uses a servo motor 108 ′ and includes a rotary encoder 156. Therefore, also in this modified example, the hydraulic circuit can be simplified and precisely controlled.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
Abstract
Hot-pressing is performed by driving and controlling pressing cylinders (150LH, 150RH, 150LL, 150RL) separately so that even if, for example, the size or the material of the board to be processed (W1) changes, the overall thickness of the processed body (W) after hot-pressing is within a prescribed range of permissible dimensions over the entire pressed surface (141). Each pressing cylinder (150LH, 150RH, 150LL, 150RL) is provided with a pressing cylinder linear encoder (151LH, 151RH, 151LL, 151RL) that detects the amount of decrease in overall thickness of the processed body (W) as the amount of ram movement and with a pressing cylinder pressure sensor (152LH, 152RH, 152LL, 152RL) that detects the pressing force of press plates (140F, 140B) as internal cylinder pressure in the pressing cylinders (150LH, 150RH, 150LL, 150RL).
The rams (153LH, 153RH, 153LL, 153RL) of the respective pressing cylinders (150LH, 150RH, 150LL, 150RL) are each affixed to the press plates (140F, 140B) so that the pressing position of the press plates (140F, 140B) with respect to the pressed surface (141) does not vary. The pressing cylinders (150LH, 150RH, 150LL, 150RL) are driven and controlled separately to perform hot-pressing, so that even if, for example, the size or the material of the board to be processed (W1) changes, the overall thickness of the processed body (W) after hot-pressing is within a prescribed range of permissible dimensions over the entire pressed surface (141).
A horizontal multistage press is thereby provided that, by controlling the operation of multiple pressing cylinders separately, can keep the thickness of a board (laminate board) after hot-pressing within a range of permissible dimensions even if, for example, the size or material of the conveyed board changes.
A horizontal multi-stage press is also provided, which, by controlling the operation of multiple pressing cylinders separately or jointly, can keep the thickness of a board (laminate board) after hot-pressing within a range of permissible dimensions without moving or adjusting the pressing cylinder pressing positions, when, for example, the size of the conveyed board changes, and can also adapt to changes in board material.
Description
本発明は、板材を加熱押圧処理する横型多段プレス装置に関する。
The present invention relates to a horizontal multi-stage press apparatus for heating and pressing a plate material.
合板、化粧板、ベニヤ単板等の板材(被処理板材)を加熱押圧して所定の板厚に成形する多段プレス装置(ホットプレス)において、多数の板材を複数配置された熱板の間にそれぞれ起立状態で搬入し、両外側に配置された押圧盤の少なくとも一方を駆動することによって加熱押圧する横型方式が知られている。この横型方式(横型ホットプレス)は、水平方向に保持された板材と熱板とを上下方向に交互に積み重ねて加熱押圧する縦型方式(縦型ホットプレス)に比して、板材や熱板自身の重量の影響による成形ムラ(板厚の不揃い)が発生しにくい利点を有する。
In a multi-stage press machine (hot press) that heats and presses plate materials (processed plate materials) such as plywood, decorative plates, and veneer veneers to form a predetermined plate thickness, each plate stands between a plurality of hot plates. There is known a horizontal type that is carried in a state and heated and pressed by driving at least one of press plates disposed on both outer sides. This horizontal method (horizontal hot press) is a plate or hot plate compared to the vertical method (vertical hot press) that heats and presses the plates and hot plates held in the horizontal direction alternately in the vertical direction. It has the advantage that molding unevenness (uneven thickness) due to its own weight is less likely to occur.
そして、このような横型ホットプレスでは、矩形状の板材の長辺の一方(下辺)を搬送基準面としてプレス装置に搬入し、長手方向(左右方向)に配置する2個の押圧シリンダ(例えば油圧シリンダ)の押圧位置を板材の短辺方向(上下方向)の中心位置と合致させるようにして加熱押圧するのが一般的である。ところが、昨今では板材の大きさが多様化し、例えば、従来一般的であった通称6尺(6尺(1.8m)×3尺(0.9m))だけでなく、通称8尺(8尺(2.4m)×4尺(1.2m))や通称10尺(10尺(3m)×5尺(1.5m))の板材も多く出回っている。
In such a horizontal hot press, two pressing cylinders (for example, hydraulic pressure) that are loaded into the press device using one of the long sides (lower side) of the rectangular plate material as a conveyance reference surface and are arranged in the longitudinal direction (left-right direction). Generally, the pressing position of the cylinder) is heated and pressed so as to match the center position in the short side direction (vertical direction) of the plate material. However, in recent years, the size of the plate material has been diversified. For example, not only the commonly known 6 scales (6 scales (1.8 m) × 3 scales (0.9 m)), but also the common name 8 scales (8 scales). (2.4 m) × 4 scales (1.2 m)) and commonly called 10 scales (10 scales (3 m) × 5 scales (1.5 m)) are also on the market.
このように、搬入される板材の大きさが変化すると、板材に対する押圧シリンダの押圧位置が変動し、板材の傾きが大きくなって加熱圧着後の厚さが部位により不均一になることがある。そこでこれまでは、搬入される板材の大きさに応じて、押圧シリンダの押圧位置を移動調節機構(例えば昇降用油圧シリンダ)によって押圧盤の押圧面に対して移動調節(昇降)し、板材に対する押圧シリンダの相対的な押圧位置が変動しないようにしていた(特許文献1参照)。
As described above, when the size of the loaded plate material changes, the pressing position of the pressing cylinder with respect to the plate material fluctuates, the inclination of the plate material increases, and the thickness after thermocompression bonding may become uneven depending on the part. So far, the pressing position of the pressing cylinder is adjusted (moved up and down) with respect to the pressing surface of the pressing plate by a movement adjusting mechanism (for example, an elevating hydraulic cylinder) according to the size of the loaded plate material. The relative pressing position of the pressing cylinder is not changed (see Patent Document 1).
特許文献1のように、押圧盤(押圧面)に対して押圧シリンダの押圧位置を移動調節することによって、板材の大きさの多様化にある程度対応することができる。しかし、押圧盤(押圧面)に対する押圧シリンダの移動調節は構造上一方向(通常上下方向)に限られるので、精緻な厚さ調節(均一化)は困難であり、特に矩形状板材の角隅部で厚さが不揃いになりやすい。
As in Patent Document 1, it is possible to cope with the diversification of the size of the plate material to some extent by moving and adjusting the pressing position of the pressing cylinder with respect to the pressing plate (pressing surface). However, since the adjustment of the movement of the pressing cylinder relative to the pressing plate (pressing surface) is structurally limited to one direction (usually in the vertical direction), precise thickness adjustment (uniformization) is difficult, especially the corners of rectangular plates. The thickness tends to be uneven at the part.
また、板材は、その大きさとともに、材質(木質)によっても異なる性質を有している。例えば、欅、ラワンのように硬く弾力性や反発力が相対的に大きい合板等(硬質材)では、反発による戻り(スプリングバック)現象で板材が傾いたり、厚さが不揃いになったりしやすい。一方、杉、桐のように軟らかく弾力性や反発力が相対的に小さい合板等(軟質材)では、押圧によって容易に厚さが減少しやすく、規定の駆動圧力であっても加熱圧着後の厚さが部分的に(特にシリンダ押圧位置で)規定より薄くなりやすい。したがって、押圧シリンダの押圧位置移動調節機構だけでは、このような板材の大きさや材質による差異に十分に対応することができず、加熱圧着後の板材である積層合板に、傾きの発生に伴う厚さの不揃いや、シリンダ押圧位置での規格外れ厚さ等が発生しやすかった。
In addition, the plate material has different properties depending on the material (wood) as well as its size. For example, a hard plywood (hard material) such as coral and lauan that has a relatively large elasticity and repulsive force (hard material) tends to tilt or become uneven due to the rebound (springback) phenomenon. . On the other hand, for soft plywood, such as cedar and paulownia, which has a relatively low elasticity and repulsive force (soft material), the thickness is easily reduced by pressing. Thickness tends to be thinner than specified (particularly at the cylinder pressing position). Therefore, only the pressing position movement adjusting mechanism of the pressing cylinder cannot sufficiently cope with such a difference due to the size and material of the plate material, and the thickness of the laminated plywood, which is the plate material after thermocompression bonding, is increased due to the occurrence of inclination. Unevenness of thickness and non-standard thickness at the cylinder pressing position were likely to occur.
本発明の第一の課題は、複数の押圧シリンダの駆動を個別に制御することによって、例えば搬入される板材の大きさや材質が変化しても、加熱圧着後の板材(積層合板)の厚さを許容寸法の範囲内に保持できる横型多段プレス装置を提供することにある。
また、本発明の第二の課題は、複数の押圧シリンダの駆動を個別に又は一括して制御することによって、例えば搬入される板材の大きさが変化したとき押圧シリンダの押圧位置を移動調節しなくても、加熱圧着後の板材(積層合板)の厚さを許容寸法の範囲内に保持でき、さらに板材の材質の変化等にも適応できる横型多段プレス装置を提供することにある。 The first problem of the present invention is that the thickness of the plate material (laminated plywood) after thermocompression bonding is controlled by controlling the driving of the plurality of pressing cylinders individually, for example, even if the size or material of the loaded plate material changes. Is to provide a horizontal multi-stage press apparatus capable of holding the pressure within a range of allowable dimensions.
In addition, the second problem of the present invention is to control the movement of the plurality of pressing cylinders individually or collectively, for example, to move and adjust the pressing position of the pressing cylinder when the size of the loaded plate material changes. It is an object of the present invention to provide a horizontal multi-stage press apparatus that can maintain the thickness of a plate material (laminated plywood) after thermocompression bonding within a range of allowable dimensions and can be adapted to changes in the material of the plate material.
また、本発明の第二の課題は、複数の押圧シリンダの駆動を個別に又は一括して制御することによって、例えば搬入される板材の大きさが変化したとき押圧シリンダの押圧位置を移動調節しなくても、加熱圧着後の板材(積層合板)の厚さを許容寸法の範囲内に保持でき、さらに板材の材質の変化等にも適応できる横型多段プレス装置を提供することにある。 The first problem of the present invention is that the thickness of the plate material (laminated plywood) after thermocompression bonding is controlled by controlling the driving of the plurality of pressing cylinders individually, for example, even if the size or material of the loaded plate material changes. Is to provide a horizontal multi-stage press apparatus capable of holding the pressure within a range of allowable dimensions.
In addition, the second problem of the present invention is to control the movement of the plurality of pressing cylinders individually or collectively, for example, to move and adjust the pressing position of the pressing cylinder when the size of the loaded plate material changes. It is an object of the present invention to provide a horizontal multi-stage press apparatus that can maintain the thickness of a plate material (laminated plywood) after thermocompression bonding within a range of allowable dimensions and can be adapted to changes in the material of the plate material.
上記課題を解決するために、第一発明に係る横型多段プレス装置は、
単板の接合面に接着剤を塗布して積層された板材を複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の外側から押圧することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記板材の板面に対して互いに異なる複数の位置に配置され、前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの各々の駆動を個別に制御するシリンダ制御部と、
を備えることを特徴とする。 In order to solve the above problems, a horizontal multi-stage press apparatus according to the first invention is
A plate is formed by applying adhesives to the bonding surface of a single plate and carrying it in an upright state between a plurality of hot plates and stacking them in the thickness direction. In the horizontal multi-stage press device that presses and presses the plate material by pressing from the outside in the overlapping direction of the body, and collectively manufactures a plurality of wooden laminated plywoods,
A plurality of pressing cylinders arranged at a plurality of positions different from each other with respect to the plate surface of the plate material, and pressing the object to be processed from the overlapping direction;
A cylinder controller that individually controls the driving of each of the plurality of pressing cylinders;
It is characterized by providing.
単板の接合面に接着剤を塗布して積層された板材を複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の外側から押圧することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記板材の板面に対して互いに異なる複数の位置に配置され、前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの各々の駆動を個別に制御するシリンダ制御部と、
を備えることを特徴とする。 In order to solve the above problems, a horizontal multi-stage press apparatus according to the first invention is
A plate is formed by applying adhesives to the bonding surface of a single plate and carrying it in an upright state between a plurality of hot plates and stacking them in the thickness direction. In the horizontal multi-stage press device that presses and presses the plate material by pressing from the outside in the overlapping direction of the body, and collectively manufactures a plurality of wooden laminated plywoods,
A plurality of pressing cylinders arranged at a plurality of positions different from each other with respect to the plate surface of the plate material, and pressing the object to be processed from the overlapping direction;
A cylinder controller that individually controls the driving of each of the plurality of pressing cylinders;
It is characterized by providing.
さらに具体的には、
単板の接合面に接着剤を塗布して積層された板材を複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の両外側に配置された押圧盤の少なくとも一方を駆動することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記押圧盤の押圧面に対して互いに異なる複数の位置に配置され、その押圧盤を駆動して前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの各々の駆動を個別に制御するシリンダ制御部と、
を備えることができる。 More specifically,
A plate is formed by applying adhesives to the bonding surface of a single plate and carrying it in an upright state between a plurality of hot plates and stacking them in the thickness direction. In the horizontal multi-stage press apparatus that heat-presses the plate material by driving at least one of the pressing plates arranged on both outer sides of the body overlapping direction, and collectively manufactures a plurality of wooden laminated plywoods,
A plurality of pressing cylinders disposed at a plurality of positions different from each other with respect to the pressing surface of the pressing plate, and driving the pressing plate to press the object to be processed from the overlapping direction, respectively;
A cylinder controller that individually controls the driving of each of the plurality of pressing cylinders;
Can be provided.
単板の接合面に接着剤を塗布して積層された板材を複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の両外側に配置された押圧盤の少なくとも一方を駆動することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記押圧盤の押圧面に対して互いに異なる複数の位置に配置され、その押圧盤を駆動して前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの各々の駆動を個別に制御するシリンダ制御部と、
を備えることができる。 More specifically,
A plate is formed by applying adhesives to the bonding surface of a single plate and carrying it in an upright state between a plurality of hot plates and stacking them in the thickness direction. In the horizontal multi-stage press apparatus that heat-presses the plate material by driving at least one of the pressing plates arranged on both outer sides of the body overlapping direction, and collectively manufactures a plurality of wooden laminated plywoods,
A plurality of pressing cylinders disposed at a plurality of positions different from each other with respect to the pressing surface of the pressing plate, and driving the pressing plate to press the object to be processed from the overlapping direction, respectively;
A cylinder controller that individually controls the driving of each of the plurality of pressing cylinders;
Can be provided.
また、上記課題を解決するために、第一発明に係る横型多段プレス装置の具体的態様は、
単板の接合面に接着剤を塗布して積層された矩形状の板材の長辺の一方を搬送基準面とし、複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の両外側に配置された押圧盤の少なくとも一方を駆動することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記押圧盤の押圧面にて中央付近に配置され、その押圧盤を接近・離間させて閉鎖・開放する開閉シリンダと、
その開閉シリンダの周囲を取り巻くように(放射状に)前記押圧盤の押圧面に対して互いに異なる複数の位置に配置され、その押圧盤を駆動して前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの各々の駆動を個別に制御するシリンダ制御部と、
を備えることを特徴とする。 In order to solve the above-mentioned problem, a specific aspect of the horizontal multi-stage press device according to the first invention is as follows:
One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. Combining them together constitutes the object to be processed, and by driving at least one of the pressing plates disposed on both outer sides of the object to be processed in the overlapping direction, the plate material is thermocompression-bonded, and a plurality of wooden laminated plywoods are bundled together. In the horizontal multi-stage press machine manufactured by
An opening / closing cylinder that is disposed near the center on the pressing surface of the pressing plate, and closes / opens the pressing plate by approaching / separating it,
It is arranged at a plurality of different positions with respect to the pressing surface of the pressing plate so as to surround the opening / closing cylinder (radially), and drives the pressing plate to press the objects to be processed from the overlapping direction. A plurality of pressing cylinders;
A cylinder controller that individually controls the driving of each of the plurality of pressing cylinders;
It is characterized by providing.
単板の接合面に接着剤を塗布して積層された矩形状の板材の長辺の一方を搬送基準面とし、複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の両外側に配置された押圧盤の少なくとも一方を駆動することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記押圧盤の押圧面にて中央付近に配置され、その押圧盤を接近・離間させて閉鎖・開放する開閉シリンダと、
その開閉シリンダの周囲を取り巻くように(放射状に)前記押圧盤の押圧面に対して互いに異なる複数の位置に配置され、その押圧盤を駆動して前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの各々の駆動を個別に制御するシリンダ制御部と、
を備えることを特徴とする。 In order to solve the above-mentioned problem, a specific aspect of the horizontal multi-stage press device according to the first invention is as follows:
One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. Combining them together constitutes the object to be processed, and by driving at least one of the pressing plates disposed on both outer sides of the object to be processed in the overlapping direction, the plate material is thermocompression-bonded, and a plurality of wooden laminated plywoods are bundled together. In the horizontal multi-stage press machine manufactured by
An opening / closing cylinder that is disposed near the center on the pressing surface of the pressing plate, and closes / opens the pressing plate by approaching / separating it,
It is arranged at a plurality of different positions with respect to the pressing surface of the pressing plate so as to surround the opening / closing cylinder (radially), and drives the pressing plate to press the objects to be processed from the overlapping direction. A plurality of pressing cylinders;
A cylinder controller that individually controls the driving of each of the plurality of pressing cylinders;
It is characterized by providing.
これらの横型多段プレス装置では、例えば搬入される板材の大きさや材質が変化した場合でも、複数の押圧シリンダ(例えば4本の油圧シリンダ(流体圧シリンダ))の駆動を個別に制御することによって、加熱圧着後の板材(積層合板)の厚さを許容寸法の範囲内に保持できるようになる。また、加熱圧着後の個々の板材(積層合板)の厚さではなく被処理体(板材+熱板)の全体厚さを押圧シリンダの駆動距離にて検出できるので、検出に要する時間も減らすことができる。したがって、制御の遅れが原因となって、板材の傾きが発生し厚さの不揃いとなったり、押圧シリンダの停止が遅れて規格外れ厚さとなったりすることを防止できる。
In these horizontal multi-stage press devices, for example, even when the size or material of the loaded plate material changes, by individually controlling the driving of a plurality of pressing cylinders (for example, four hydraulic cylinders (fluid pressure cylinders)), The thickness of the plate material (laminated plywood) after thermocompression bonding can be maintained within the allowable dimension range. In addition, the total thickness of the object to be processed (plate material + hot plate) can be detected by the driving distance of the pressing cylinder, not the thickness of individual plate materials (laminated plywood) after thermocompression bonding, thus reducing the time required for detection. Can do. Therefore, it is possible to prevent the plate material from being tilted and resulting in uneven thickness due to the delay in control, or the stoppage of the pressing cylinder from being delayed and being out of specification.
しかも、押圧シリンダの他に、押圧盤の開閉専用の開閉シリンダ(例えば1本の油圧シリンダ(流体圧シリンダ))を設ける場合には、ロングスパンでの高速移動を要する開閉シリンダとショートスパンでの微細移動を要する押圧シリンダとを使い分けることができる。したがって、押圧盤の開閉動作の迅速化によりホットプレスの作業能率が向上するとともに、押圧シリンダの駆動制御が押圧盤の開閉動作に影響されずに高精度で行える。
Moreover, in addition to the pressing cylinder, when an opening / closing cylinder dedicated to opening / closing the pressing plate (for example, one hydraulic cylinder (fluid pressure cylinder)) is provided, an opening / closing cylinder that requires high-speed movement over a long span and a short span are used. A pressing cylinder that requires fine movement can be used properly. Therefore, the working efficiency of the hot press is improved by speeding up the opening / closing operation of the pressing plate, and the driving control of the pressing cylinder can be performed with high accuracy without being influenced by the opening / closing operation of the pressing plate.
さらに、複数の押圧シリンダは、開閉シリンダの周囲を取り巻くように(放射状に)押圧盤の押圧面に対して配置されている。これにより、押圧盤に対して複数の押圧シリンダを同時に押圧駆動させても、板材(すなわち押圧盤)に傾きが発生しにくくなる。例えば、複数の押圧シリンダが、開閉シリンダに関して互いに点対称及び/又は線対称の位置になるように配置されていると、各押圧シリンダの駆動圧力が押圧盤に対して同時にかつ均等に作用するようになる。
Further, the plurality of pressing cylinders are arranged (radially) with respect to the pressing surface of the pressing plate so as to surround the opening / closing cylinder. As a result, even if a plurality of pressing cylinders are simultaneously pressed against the pressing plate, the plate material (that is, the pressing plate) is less likely to be inclined. For example, when a plurality of pressing cylinders are arranged so as to be point-symmetrical and / or line-symmetrical with respect to the open / close cylinder, the driving pressure of each pressing cylinder acts on the pressing plate simultaneously and evenly. become.
なお、複数の押圧シリンダは、押圧位置が不変とされた固定式、押圧位置が板材の搬入方向と交差(直交)する方向(例えば上下方向)へ変更(昇降)可能な移動式のいずれであってもよく、両者を混合した複合式としてもよい。その際、複数の押圧シリンダの全部又は一部を固定式とする場合には、押圧シリンダの押圧位置移動調節機構の簡素化を図ることができる。
The plurality of pressing cylinders are either a fixed type in which the pressing position is not changed, or a movable type in which the pressing position can be changed (lifted up and down) in a direction (for example, the vertical direction) intersecting (orthogonal) the plate material loading direction. Alternatively, a composite type in which both are mixed may be used. In that case, when all or some of the plurality of pressing cylinders are fixed, the pressing position movement adjusting mechanism of the pressing cylinder can be simplified.
また、複数の押圧シリンダを、板材の板面(押圧盤の押圧面)に対する押圧位置が搬送基準面に沿って複数の列状(例えば2列状)に並ぶように分散して配置することができる。このように、複数の押圧シリンダを搬送基準面に沿って複数の列状に並べることによって、搬送基準面から同じ距離にある同列の押圧シリンダ群に対して、押圧シリンダの駆動圧力や駆動距離を共通設定することができ、プレス制御を円滑に実行することができる。
Further, the plurality of pressing cylinders may be arranged in a distributed manner such that the pressing positions with respect to the plate surface of the plate material (the pressing surface of the pressing plate) are arranged in a plurality of rows (for example, two rows) along the conveyance reference surface. it can. In this way, by arranging a plurality of pressing cylinders in a plurality of rows along the conveyance reference plane, the drive pressure and driving distance of the pressing cylinders can be reduced with respect to a group of pressing cylinders at the same distance from the conveyance reference plane. Common settings can be made, and press control can be executed smoothly.
そして、シリンダ制御部は、複数の押圧シリンダが被処理体を押圧する際の駆動距離をそれぞれ検出する距離検出手段と、それら複数の押圧シリンダに付与される駆動圧力をそれぞれ検出する圧力検出手段とを有し、加熱押圧後の被処理体全体の厚さを許容寸法の範囲内とするために、距離検出手段で検出される各押圧シリンダの駆動距離が所定の設定範囲内において偏りなく均一に近づくように各押圧シリンダを個別に駆動制御することが望ましい。
The cylinder control unit includes a distance detection unit that detects driving distances when the plurality of pressing cylinders press the workpiece, and a pressure detection unit that detects driving pressures applied to the plurality of pressing cylinders, respectively. And the driving distance of each pressing cylinder detected by the distance detecting means is evenly distributed within a predetermined setting range so that the thickness of the entire object to be processed after heating and pressing is within the allowable dimension range. It is desirable to individually drive and control each pressing cylinder so as to approach each other.
このように、押圧シリンダに付与される駆動圧力や押圧シリンダの駆動距離を各押圧シリンダ毎に検出して制御するので、各押圧シリンダから得られる検出値(駆動圧力と駆動距離)に基づいて直ちに各押圧シリンダの駆動を個別に制御することができ、制御の簡素化と迅速化を図ることができる。なお、押圧シリンダに付与される駆動圧力を検出する圧力検出手段として、例えば押圧シリンダのシリンダ内圧を検出する圧力センサを用いることができる。また、押圧シリンダの駆動距離を検出する距離検出手段として、例えば押圧シリンダのラム移動量を検出するリニアエンコーダを用いることができる。
In this way, since the driving pressure applied to the pressing cylinder and the driving distance of the pressing cylinder are detected and controlled for each pressing cylinder, immediately based on the detection values (driving pressure and driving distance) obtained from each pressing cylinder. The drive of each pressing cylinder can be controlled individually, and the control can be simplified and speeded up. For example, a pressure sensor for detecting the cylinder internal pressure of the pressing cylinder can be used as the pressure detecting means for detecting the driving pressure applied to the pressing cylinder. Further, as a distance detecting means for detecting the driving distance of the pressing cylinder, for example, a linear encoder that detects the amount of ram movement of the pressing cylinder can be used.
このような横型多段プレス装置において、例えば硬い材質で弾力性・反発力が大きい合板(硬質材)の場合、
上記シリンダ制御部は、
複数の押圧シリンダの押圧駆動に伴って各押圧シリンダの駆動圧力が所定の目標範囲に達したとき、距離検出手段で検出される各押圧シリンダの駆動距離が設定範囲内であり、かつ偏りなく均一とみなせる均一範囲内にある場合には、複数の押圧シリンダの押圧駆動を停止することができる。 In such a horizontal multi-stage press device, for example, in the case of a plywood (hard material) that is a hard material and has high elasticity and repulsion,
The cylinder control unit
When the driving pressure of each pressing cylinder reaches a predetermined target range along with the pressing drive of a plurality of pressing cylinders, the driving distance of each pressing cylinder detected by the distance detecting means is within the set range and is uniform without deviation In the uniform range that can be regarded as, it is possible to stop the pressing drive of the plurality of pressing cylinders.
上記シリンダ制御部は、
複数の押圧シリンダの押圧駆動に伴って各押圧シリンダの駆動圧力が所定の目標範囲に達したとき、距離検出手段で検出される各押圧シリンダの駆動距離が設定範囲内であり、かつ偏りなく均一とみなせる均一範囲内にある場合には、複数の押圧シリンダの押圧駆動を停止することができる。 In such a horizontal multi-stage press device, for example, in the case of a plywood (hard material) that is a hard material and has high elasticity and repulsion,
The cylinder control unit
When the driving pressure of each pressing cylinder reaches a predetermined target range along with the pressing drive of a plurality of pressing cylinders, the driving distance of each pressing cylinder detected by the distance detecting means is within the set range and is uniform without deviation In the uniform range that can be regarded as, it is possible to stop the pressing drive of the plurality of pressing cylinders.
具体的には、上記シリンダ制御部は、
複数の押圧シリンダの押圧駆動に伴って各押圧シリンダの駆動圧力が所定の目標範囲に達したとき、距離検出手段で検出される各押圧シリンダの駆動距離が設定範囲内であり、かつ偏りなく均一とみなせる均一範囲内にある場合には、複数の押圧シリンダの押圧駆動を停止する一方、
いずれかの押圧シリンダの駆動距離が均一範囲内にない場合には、その押圧シリンダの駆動圧力に係る目標範囲の上下限を拡大する(広げる)ことによって、対応する押圧シリンダの駆動圧力を増圧又は減圧可能とすることができる。 Specifically, the cylinder control unit
When the driving pressure of each pressing cylinder reaches a predetermined target range along with the pressing drive of a plurality of pressing cylinders, the driving distance of each pressing cylinder detected by the distance detecting means is within the set range and is uniform without deviation In the uniform range that can be regarded as, while stopping the pressing drive of the plurality of pressing cylinders,
When the driving distance of any pressing cylinder is not within the uniform range, the driving pressure of the corresponding pressing cylinder is increased by expanding (expanding) the upper and lower limits of the target range related to the driving pressure of the pressing cylinder. Alternatively, the pressure can be reduced.
複数の押圧シリンダの押圧駆動に伴って各押圧シリンダの駆動圧力が所定の目標範囲に達したとき、距離検出手段で検出される各押圧シリンダの駆動距離が設定範囲内であり、かつ偏りなく均一とみなせる均一範囲内にある場合には、複数の押圧シリンダの押圧駆動を停止する一方、
いずれかの押圧シリンダの駆動距離が均一範囲内にない場合には、その押圧シリンダの駆動圧力に係る目標範囲の上下限を拡大する(広げる)ことによって、対応する押圧シリンダの駆動圧力を増圧又は減圧可能とすることができる。 Specifically, the cylinder control unit
When the driving pressure of each pressing cylinder reaches a predetermined target range along with the pressing drive of a plurality of pressing cylinders, the driving distance of each pressing cylinder detected by the distance detecting means is within the set range and is uniform without deviation In the uniform range that can be regarded as, while stopping the pressing drive of the plurality of pressing cylinders,
When the driving distance of any pressing cylinder is not within the uniform range, the driving pressure of the corresponding pressing cylinder is increased by expanding (expanding) the upper and lower limits of the target range related to the driving pressure of the pressing cylinder. Alternatively, the pressure can be reduced.
欅、ラワンのように硬く弾力性や反発力が相対的に大きい合板等(硬質材)では、反発による戻り(スプリングバック)現象で板材が傾きやすい。そこで、まず各押圧シリンダの駆動圧力を目標範囲内に到達させ、そのときの各押圧シリンダの駆動距離が設定範囲内であってかつ均一範囲内であれば、板材の傾きは0か極めて小さいと考えられるので、押圧シリンダの押圧駆動を停止する。他方、いずれかの押圧シリンダの駆動距離が均一範囲内になければ、是正(緩和)すべき傾きが板材に発生していると考えられるので、押圧シリンダの駆動圧力に係る目標範囲の上下限を許容できる範囲まで広げて対応する押圧シリンダの駆動圧力を増圧(又は減圧)する。このように押圧シリンダの駆動を圧力重視で個別に制御するので、特に硬質材における戻り現象によって板材が一時的に傾いても、被処理体(板材+熱板)の全体厚さを所定の許容寸法に仕上げる過程において板材の傾きを是正(緩和)できるので、不良品の発生を抑制し製品歩留まりを向上させることができる。
欅 Plywood, etc. (hard material) that is hard and has a relatively large elasticity and repulsive force (hard material), such as Lauan, tends to tilt due to the rebound (spring back) phenomenon. Therefore, first, the driving pressure of each pressing cylinder is made to reach the target range, and if the driving distance of each pressing cylinder at that time is within the set range and within the uniform range, the inclination of the plate material is 0 or very small. Since it is considered, the pressing drive of the pressing cylinder is stopped. On the other hand, if the driving distance of one of the pressing cylinders is not within the uniform range, it is considered that the inclination to be corrected (relaxed) has occurred in the plate material. The drive pressure of the corresponding pressing cylinder is increased (or reduced) by expanding to an allowable range. In this way, the driving of the pressing cylinder is individually controlled with emphasis on pressure, so that the overall thickness of the object to be processed (plate material + hot plate) is allowed to a predetermined tolerance, even if the plate material is temporarily inclined due to the return phenomenon in the hard material. Since the inclination of the plate material can be corrected (relaxed) in the process of finishing the dimensions, the generation of defective products can be suppressed and the product yield can be improved.
一方、例えば軟らかい材質で弾力性・反発力が小さい合板(軟質材)の場合、
上記シリンダ制御部は、
複数の押圧シリンダの押圧駆動に伴って各押圧シリンダの駆動距離が設定範囲に達したとき、圧力検出手段で検出される各押圧シリンダの駆動圧力が所定の目標範囲内であり、かつ距離検出手段で検出される各押圧シリンダの駆動距離が偏りなく均一とみなせる均一範囲内にある場合には、複数の押圧シリンダの押圧駆動を停止することができる。 On the other hand, for example, in the case of a plywood (soft material) that is soft and has low elasticity and repulsion,
The cylinder control unit
When the driving distance of each pressing cylinder reaches a set range with the pressing driving of the plurality of pressing cylinders, the driving pressure of each pressing cylinder detected by the pressure detecting means is within a predetermined target range, and the distance detecting means When the driving distances of the respective pressing cylinders detected in the above are within a uniform range that can be regarded as uniform without deviation, the pressing driving of the plurality of pressing cylinders can be stopped.
上記シリンダ制御部は、
複数の押圧シリンダの押圧駆動に伴って各押圧シリンダの駆動距離が設定範囲に達したとき、圧力検出手段で検出される各押圧シリンダの駆動圧力が所定の目標範囲内であり、かつ距離検出手段で検出される各押圧シリンダの駆動距離が偏りなく均一とみなせる均一範囲内にある場合には、複数の押圧シリンダの押圧駆動を停止することができる。 On the other hand, for example, in the case of a plywood (soft material) that is soft and has low elasticity and repulsion,
The cylinder control unit
When the driving distance of each pressing cylinder reaches a set range with the pressing driving of the plurality of pressing cylinders, the driving pressure of each pressing cylinder detected by the pressure detecting means is within a predetermined target range, and the distance detecting means When the driving distances of the respective pressing cylinders detected in the above are within a uniform range that can be regarded as uniform without deviation, the pressing driving of the plurality of pressing cylinders can be stopped.
具体的には、上記シリンダ制御部は、
複数の押圧シリンダの押圧駆動に伴って各押圧シリンダの駆動距離が設定範囲の下限に達したとき、圧力検出手段で検出される各押圧シリンダの駆動圧力が所定の目標範囲の上限以下であり、かつ距離検出手段で検出される各押圧シリンダの駆動距離が偏りなく均一とみなせる均一範囲内にある場合には、複数の押圧シリンダの押圧駆動を停止する一方、
いずれかの押圧シリンダの駆動距離が均一範囲内にない場合には、対応する押圧シリンダの駆動距離が設定範囲の上限以下であればその駆動圧力を増圧可能とすることができる。 Specifically, the cylinder control unit
When the driving distance of each pressing cylinder reaches the lower limit of the setting range with the pressing driving of the plurality of pressing cylinders, the driving pressure of each pressing cylinder detected by the pressure detection means is below the upper limit of the predetermined target range, And when the driving distance of each pressing cylinder detected by the distance detecting means is within a uniform range that can be regarded as uniform without deviation, the pressing driving of the plurality of pressing cylinders is stopped,
When the driving distance of any pressing cylinder is not within the uniform range, the driving pressure can be increased if the driving distance of the corresponding pressing cylinder is equal to or less than the upper limit of the setting range.
複数の押圧シリンダの押圧駆動に伴って各押圧シリンダの駆動距離が設定範囲の下限に達したとき、圧力検出手段で検出される各押圧シリンダの駆動圧力が所定の目標範囲の上限以下であり、かつ距離検出手段で検出される各押圧シリンダの駆動距離が偏りなく均一とみなせる均一範囲内にある場合には、複数の押圧シリンダの押圧駆動を停止する一方、
いずれかの押圧シリンダの駆動距離が均一範囲内にない場合には、対応する押圧シリンダの駆動距離が設定範囲の上限以下であればその駆動圧力を増圧可能とすることができる。 Specifically, the cylinder control unit
When the driving distance of each pressing cylinder reaches the lower limit of the setting range with the pressing driving of the plurality of pressing cylinders, the driving pressure of each pressing cylinder detected by the pressure detection means is below the upper limit of the predetermined target range, And when the driving distance of each pressing cylinder detected by the distance detecting means is within a uniform range that can be regarded as uniform without deviation, the pressing driving of the plurality of pressing cylinders is stopped,
When the driving distance of any pressing cylinder is not within the uniform range, the driving pressure can be increased if the driving distance of the corresponding pressing cylinder is equal to or less than the upper limit of the setting range.
杉、桐のように軟らかく弾力性や反発力が相対的に小さい合板等(軟質材)では、押圧によって容易に厚さが減少しやすく、規定の駆動圧力であっても加熱圧着後の厚さが部分的に(特にシリンダ押圧位置で)規定より薄くなりやすい。そこで、各押圧シリンダの駆動距離が設定範囲(の下限)に到達したとき、各押圧シリンダの駆動圧力が所定の目標範囲内(目標範囲の上限以下)であって、かつ各押圧シリンダの駆動距離が均一範囲内であれば、板材の傾きは0か極めて小さいと考えられるので、押圧シリンダの押圧駆動を停止する。他方、いずれかの押圧シリンダの駆動距離が均一範囲内になければ、是正(緩和)すべき傾きが板材に発生していると考えられるので、対応する押圧シリンダの駆動距離が設定範囲の上限以下であればその駆動圧力を増圧する。このように押圧シリンダの駆動を距離重視で個別に制御するので、特に軟質材に対して押圧過剰の発生を防止(監視)しつつ、被処理体(板材+熱板)の全体厚さを所定の許容寸法に仕上げる過程において板材の傾きを是正(緩和)できるので、不良品の発生を抑制し製品歩留まりを向上させることができる。
For plywood, etc. (soft material) that is soft and has little elasticity and repulsion, such as cedar and paulownia (soft material), the thickness is easily reduced by pressing, and the thickness after thermocompression bonding even at the specified driving pressure Tends to be thinner than specified (particularly at the cylinder pressing position). Therefore, when the driving distance of each pressing cylinder reaches the set range (lower limit), the driving pressure of each pressing cylinder is within a predetermined target range (below the upper limit of the target range), and the driving distance of each pressing cylinder Is within a uniform range, the inclination of the plate material is considered to be 0 or very small, and the pressing drive of the pressing cylinder is stopped. On the other hand, if the driving distance of one of the pressing cylinders is not within the uniform range, it is considered that the inclination to be corrected (relaxed) is occurring in the plate material, so the driving distance of the corresponding pressing cylinder is less than the upper limit of the setting range. If so, the driving pressure is increased. As described above, since the driving of the pressing cylinder is individually controlled with emphasis on distance, the entire thickness of the object to be processed (plate material + hot plate) is predetermined while preventing (monitoring) excessive pressing particularly on the soft material. Since the inclination of the plate material can be corrected (relieved) in the process of finishing to the allowable dimension, the generation of defective products can be suppressed and the product yield can be improved.
ところで、押圧シリンダの駆動距離が均一範囲内にあるか否かは、距離検出手段で検出された各々の押圧シリンダの駆動距離の差の大小、又はそれら駆動距離の検出値から演算された板材の傾きの大小によって判定することができる。
By the way, whether or not the driving distance of the pressing cylinder is within the uniform range is determined by the difference in the driving distance of each pressing cylinder detected by the distance detecting means, or the plate material calculated from the detected value of the driving distance. It can be determined by the magnitude of the inclination.
これによって、被処理体(板材+熱板)の全体厚さを所定の許容寸法に仕上げる過程において、各押圧シリンダの駆動距離の検出値から駆動距離の差又は板材の傾きを求め、駆動距離が均一範囲内にあるか否かを判定して、板材の傾きを迅速に是正(緩和)できるので、不良品の発生を抑制し製品歩留まりを飛躍的に向上させることができる。なお、駆動距離が均一範囲内にあるか否かを駆動距離の差の大小によって判定する場合には、判定に用いる駆動距離の差(最大許容幅;例えば20mm)は駆動距離の設定範囲の幅(最大許容幅;例えば40mm=±20mm)よりも小さく(例えば1/2)設定されるのが通常である。
Thus, in the process of finishing the overall thickness of the object to be processed (plate material + hot plate) to a predetermined allowable dimension, the difference in driving distance or the inclination of the plate material is obtained from the detected value of the driving distance of each pressing cylinder. It can be determined whether or not it is within the uniform range, and the inclination of the plate material can be corrected (relaxed) quickly, so that the occurrence of defective products can be suppressed and the product yield can be dramatically improved. When determining whether or not the driving distance is within the uniform range based on the difference in the driving distance, the driving distance difference (maximum allowable width; for example, 20 mm) used for the determination is the width of the driving distance setting range. Usually, it is set smaller (for example, 1/2) than (maximum allowable width; for example, 40 mm = ± 20 mm).
次に、上記課題を解決するために、第二発明に係る横型多段プレス装置は、
単板の接合面に接着剤を塗布して積層された矩形状の板材の長辺の一方を搬送基準面とし、複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の外側から押圧することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記板材の板面に対して互いに異なる複数の位置に配置され、前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの駆動を個別に又は一括して制御するシリンダ制御部とを備え、
前記複数の押圧シリンダのうち、少なくとも前記板材の搬送基準面寄りに配置された押圧シリンダは、前記板材の板面に対する押圧位置が不変とされ(た固定式押圧シリンダを構成す)ることを特徴とする。 Next, in order to solve the above-mentioned problem, the horizontal multi-stage press device according to the second invention is:
One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. In the horizontal multi-stage press apparatus that constitutes the object to be processed by combining them, heats and presses the plate material by pressing from the outside in the overlapping direction of the objects to be processed, and collectively manufactures a plurality of wooden laminated plywoods,
A plurality of pressing cylinders arranged at a plurality of positions different from each other with respect to the plate surface of the plate material, and pressing the object to be processed from the overlapping direction;
A cylinder control unit for controlling the driving of the plurality of pressing cylinders individually or collectively,
Among the plurality of pressing cylinders, the pressing cylinder disposed at least near the conveyance reference plane of the plate material is configured such that the pressing position with respect to the plate surface of the plate material is unchanged (constitutes a fixed pressing cylinder). And
単板の接合面に接着剤を塗布して積層された矩形状の板材の長辺の一方を搬送基準面とし、複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の外側から押圧することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記板材の板面に対して互いに異なる複数の位置に配置され、前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの駆動を個別に又は一括して制御するシリンダ制御部とを備え、
前記複数の押圧シリンダのうち、少なくとも前記板材の搬送基準面寄りに配置された押圧シリンダは、前記板材の板面に対する押圧位置が不変とされ(た固定式押圧シリンダを構成す)ることを特徴とする。 Next, in order to solve the above-mentioned problem, the horizontal multi-stage press device according to the second invention is:
One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. In the horizontal multi-stage press apparatus that constitutes the object to be processed by combining them, heats and presses the plate material by pressing from the outside in the overlapping direction of the objects to be processed, and collectively manufactures a plurality of wooden laminated plywoods,
A plurality of pressing cylinders arranged at a plurality of positions different from each other with respect to the plate surface of the plate material, and pressing the object to be processed from the overlapping direction;
A cylinder control unit for controlling the driving of the plurality of pressing cylinders individually or collectively,
Among the plurality of pressing cylinders, the pressing cylinder disposed at least near the conveyance reference plane of the plate material is configured such that the pressing position with respect to the plate surface of the plate material is unchanged (constitutes a fixed pressing cylinder). And
さらに具体的には、
単板の接合面に接着剤を塗布して積層された矩形状の板材の長辺の一方を搬送基準面とし、複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の両外側に配置された押圧盤の少なくとも一方を駆動することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記押圧盤の押圧面に対して互いに異なる複数の位置に配置され、その押圧盤を駆動して前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの駆動を個別に又は一括して制御するシリンダ制御部とを備え、
前記複数の押圧シリンダのうち、少なくとも前記板材の搬送基準面寄りに配置された押圧シリンダは、前記押圧盤の押圧面に対する押圧位置が不変とされ(た固定式押圧シリンダを構成す)る場合がある。 More specifically,
One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. Combining them together constitutes the object to be processed, and by driving at least one of the pressing plates disposed on both outer sides of the object to be processed in the overlapping direction, the plate material is thermocompression-bonded, and a plurality of wooden laminated plywoods are bundled together. In the horizontal multi-stage press machine manufactured by
A plurality of pressing cylinders disposed at a plurality of positions different from each other with respect to the pressing surface of the pressing plate, and driving the pressing plate to press the object to be processed from the overlapping direction, respectively;
A cylinder control unit for controlling the driving of the plurality of pressing cylinders individually or collectively,
Of the plurality of pressing cylinders, at least the pressing cylinder disposed near the conveyance reference surface of the plate material may have a constant pressing position with respect to the pressing surface of the pressing plate (constitutes a fixed pressing cylinder). is there.
単板の接合面に接着剤を塗布して積層された矩形状の板材の長辺の一方を搬送基準面とし、複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の両外側に配置された押圧盤の少なくとも一方を駆動することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記押圧盤の押圧面に対して互いに異なる複数の位置に配置され、その押圧盤を駆動して前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの駆動を個別に又は一括して制御するシリンダ制御部とを備え、
前記複数の押圧シリンダのうち、少なくとも前記板材の搬送基準面寄りに配置された押圧シリンダは、前記押圧盤の押圧面に対する押圧位置が不変とされ(た固定式押圧シリンダを構成す)る場合がある。 More specifically,
One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. Combining them together constitutes the object to be processed, and by driving at least one of the pressing plates disposed on both outer sides of the object to be processed in the overlapping direction, the plate material is thermocompression-bonded, and a plurality of wooden laminated plywoods are bundled together. In the horizontal multi-stage press machine manufactured by
A plurality of pressing cylinders disposed at a plurality of positions different from each other with respect to the pressing surface of the pressing plate, and driving the pressing plate to press the object to be processed from the overlapping direction, respectively;
A cylinder control unit for controlling the driving of the plurality of pressing cylinders individually or collectively,
Of the plurality of pressing cylinders, at least the pressing cylinder disposed near the conveyance reference surface of the plate material may have a constant pressing position with respect to the pressing surface of the pressing plate (constitutes a fixed pressing cylinder). is there.
また、上記課題を解決するために、第二発明に係る横型多段プレス装置の具体的態様は、
単板の接合面に接着剤を塗布して積層された矩形状の板材の長辺の一方を搬送基準面とし、複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の両外側に配置された押圧盤の少なくとも一方を駆動することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記押圧盤の押圧面にて中央付近に配置され、その押圧盤を接近・離間させて閉鎖・開放する開閉シリンダと、
その開閉シリンダの周囲を取り巻くように(放射状に)前記押圧盤の押圧面に対して互いに異なる複数の位置に配置され、その押圧盤を駆動して前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの駆動を個別に又は一括して制御するシリンダ制御部とを備え、
前記複数の押圧シリンダのうち、少なくとも前記開閉シリンダよりも前記板材の搬送基準面寄りに配置された押圧シリンダは、前記押圧盤の押圧面に対する押圧位置が不変とされ(た固定式押圧シリンダを構成す)ることを特徴とする。 Moreover, in order to solve the said subject, the specific aspect of the horizontal type multistage press apparatus which concerns on 2nd invention is as follows.
One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. Combining them together constitutes the object to be processed, and by driving at least one of the pressing plates disposed on both outer sides of the object to be processed in the overlapping direction, the plate material is thermocompression-bonded, and a plurality of wooden laminated plywoods are bundled together. In the horizontal multi-stage press machine manufactured by
An opening / closing cylinder that is disposed near the center on the pressing surface of the pressing plate, and closes / opens the pressing plate by approaching / separating it,
It is arranged at a plurality of different positions with respect to the pressing surface of the pressing plate so as to surround the opening / closing cylinder (radially), and drives the pressing plate to press the objects to be processed from the overlapping direction. A plurality of pressing cylinders;
A cylinder control unit for controlling the driving of the plurality of pressing cylinders individually or collectively,
Among the plurality of pressing cylinders, at least the pressing cylinder disposed closer to the conveyance reference plane of the plate material than the opening / closing cylinder has a fixed pressing position with respect to the pressing surface of the pressing plate (constitutes a fixed pressing cylinder). It is characterized by that.
単板の接合面に接着剤を塗布して積層された矩形状の板材の長辺の一方を搬送基準面とし、複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の両外側に配置された押圧盤の少なくとも一方を駆動することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記押圧盤の押圧面にて中央付近に配置され、その押圧盤を接近・離間させて閉鎖・開放する開閉シリンダと、
その開閉シリンダの周囲を取り巻くように(放射状に)前記押圧盤の押圧面に対して互いに異なる複数の位置に配置され、その押圧盤を駆動して前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの駆動を個別に又は一括して制御するシリンダ制御部とを備え、
前記複数の押圧シリンダのうち、少なくとも前記開閉シリンダよりも前記板材の搬送基準面寄りに配置された押圧シリンダは、前記押圧盤の押圧面に対する押圧位置が不変とされ(た固定式押圧シリンダを構成す)ることを特徴とする。 Moreover, in order to solve the said subject, the specific aspect of the horizontal type multistage press apparatus which concerns on 2nd invention is as follows.
One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. Combining them together constitutes the object to be processed, and by driving at least one of the pressing plates disposed on both outer sides of the object to be processed in the overlapping direction, the plate material is thermocompression-bonded, and a plurality of wooden laminated plywoods are bundled together. In the horizontal multi-stage press machine manufactured by
An opening / closing cylinder that is disposed near the center on the pressing surface of the pressing plate, and closes / opens the pressing plate by approaching / separating it,
It is arranged at a plurality of different positions with respect to the pressing surface of the pressing plate so as to surround the opening / closing cylinder (radially), and drives the pressing plate to press the objects to be processed from the overlapping direction. A plurality of pressing cylinders;
A cylinder control unit for controlling the driving of the plurality of pressing cylinders individually or collectively,
Among the plurality of pressing cylinders, at least the pressing cylinder disposed closer to the conveyance reference plane of the plate material than the opening / closing cylinder has a fixed pressing position with respect to the pressing surface of the pressing plate (constitutes a fixed pressing cylinder). It is characterized by that.
これらの横型多段プレス装置では、例えば搬入される板材の大きさや材質が変化した場合でも、複数の押圧シリンダ(例えば4本の油圧シリンダ(流体圧シリンダ))の駆動を個別に又は一括して制御することによって加熱圧着後の板材の厚さを許容寸法の範囲内に保持できるようになる。したがって、頑丈で重い構造物である押圧シリンダのうちの少なくとも板材の搬送基準面寄りに配置されたものについて、押圧位置を移動調節するための押圧位置移動調節機構を設けなくてもよくなるので、構造の簡素化を図り、組立・設置等に要する製造コストや稼動・修理等に要するランニングコストを削減できる。また、加熱圧着後の個々の板材(積層合板)の厚さではなく被処理体(板材+熱板)の全体厚さを押圧シリンダの駆動距離にて検出できるので、検出に要する時間も減らすことができる。したがって、制御の遅れが原因となって、板材の傾きが発生し厚さの不揃いとなったり、押圧シリンダの停止が遅れて規格外れ厚さとなったりすることを防止できる。
In these horizontal multi-stage press devices, for example, even when the size or material of the loaded plate material changes, the drive of a plurality of pressing cylinders (for example, four hydraulic cylinders (fluid pressure cylinders)) is controlled individually or collectively. By doing so, the thickness of the plate material after thermocompression bonding can be maintained within the allowable dimension range. Accordingly, it is not necessary to provide a pressing position movement adjusting mechanism for moving and adjusting the pressing position of at least the pressing cylinder that is a sturdy and heavy structure disposed near the conveyance reference plane of the plate material. Can be simplified, and the manufacturing cost required for assembly and installation, and the running cost required for operation and repair can be reduced. In addition, the total thickness of the object to be processed (plate material + hot plate) can be detected by the driving distance of the pressing cylinder, not the thickness of individual plate materials (laminated plywood) after thermocompression bonding, thus reducing the time required for detection. Can do. Therefore, it is possible to prevent the plate material from being tilted and resulting in uneven thickness due to the delay in control, or the stoppage of the pressing cylinder from being delayed and being out of specification.
しかも、押圧シリンダの他に、押圧盤の開閉専用の開閉シリンダ(例えば1本の油圧シリンダ(流体圧シリンダ))を設ける場合には、ロングスパンでの高速移動を要する開閉シリンダとショートスパンでの微細移動を要する押圧シリンダとを使い分けることができる。したがって、押圧盤の開閉動作の迅速化によりホットプレスの作業能率が向上するとともに、押圧シリンダの駆動制御が押圧盤の開閉動作に影響されずに高精度で行える。
Moreover, in addition to the pressing cylinder, when an opening / closing cylinder dedicated to opening / closing the pressing plate (for example, one hydraulic cylinder (fluid pressure cylinder)) is provided, an opening / closing cylinder that requires high-speed movement over a long span and a short span are used. A pressing cylinder that requires fine movement can be used properly. Therefore, the working efficiency of the hot press is improved by speeding up the opening / closing operation of the pressing plate, and the driving control of the pressing cylinder can be performed with high accuracy without being influenced by the opening / closing operation of the pressing plate.
さらに、複数の押圧シリンダは、開閉シリンダの周囲を取り巻くように(放射状に)押圧盤の押圧面に対して配置されている。これにより、押圧盤に対して複数の押圧シリンダを同時に押圧駆動させても、板材(すなわち押圧盤)に傾きが発生しにくくなる。例えば、複数の押圧シリンダが、開閉シリンダに関して互いに点対称及び/又は線対称の位置になるように配置されていると、各押圧シリンダの駆動圧力が押圧盤に対して同時にかつ均等に作用するようになる。
Further, the plurality of pressing cylinders are arranged (radially) with respect to the pressing surface of the pressing plate so as to surround the opening / closing cylinder. As a result, even if a plurality of pressing cylinders are simultaneously pressed against the pressing plate, the plate material (that is, the pressing plate) is less likely to be inclined. For example, when a plurality of pressing cylinders are arranged so as to be point-symmetrical and / or line-symmetrical with respect to the open / close cylinder, the driving pressure of each pressing cylinder acts on the pressing plate simultaneously and evenly. become.
なお、複数のうち少なくともいずれか(例えば4本のうち2本)の押圧シリンダが、板材の板面(押圧盤の押圧面)に対して押圧位置が不変とされた固定式に構成されていればよい。したがって、残り(例えば2本)の押圧シリンダを、押圧位置が板材の搬入方向と交差(直交)する方向(例えば上下方向)へ変更(昇降)可能な移動式に構成した場合であっても、押圧シリンダの押圧位置移動調節機構の簡素化を図ることができる。
In addition, at least one of the plurality of (for example, two out of four) pressing cylinders may be configured in a fixed manner in which the pressing position is unchanged with respect to the plate surface of the plate material (the pressing surface of the pressing plate). That's fine. Therefore, even when the remaining (for example, two) pressing cylinders are configured to be movable so that the pressing position can be changed (lifted / lowered) in a direction (for example, the vertical direction) intersecting (orthogonal) with the plate material loading direction, It is possible to simplify the pressing position movement adjusting mechanism of the pressing cylinder.
また、複数の押圧シリンダを、板材の板面(押圧盤の押圧面)に対する押圧位置が搬送基準面に沿って複数の列状(例えば2列状)に並ぶように分散して配置することができる。このように、複数の押圧シリンダを搬送基準面に沿って複数の列状に並べることによって、搬送基準面から同じ距離にある同列の押圧シリンダ群に対して、押圧シリンダの駆動圧力や駆動距離を共通設定することができ、プレス制御を円滑に実行することができる。
Further, the plurality of pressing cylinders may be arranged in a distributed manner such that the pressing positions with respect to the plate surface of the plate material (the pressing surface of the pressing plate) are arranged in a plurality of rows (for example, two rows) along the conveyance reference surface. it can. In this way, by arranging a plurality of pressing cylinders in a plurality of rows along the conveyance reference plane, the drive pressure and driving distance of the pressing cylinders can be reduced with respect to a group of pressing cylinders at the same distance from the conveyance reference plane. Common settings can be made, and press control can be executed smoothly.
そして、複数の押圧シリンダは、
(開閉シリンダよりも)板材の搬送基準面寄りの(下側)領域に配置され、かつ板材の板面(押圧盤の押圧面)に対する押圧位置が不変とされた複数の固定式押圧シリンダと、
(同じく)前記搬送基準面から遠い(上側)領域に配置され、かつ板材の板面(押圧盤の押圧面)に対する押圧位置が固定式押圧シリンダの押圧位置に対して(上下方向へ)変更可能とされた複数の移動式押圧シリンダとを含む場合がある。 The plurality of pressing cylinders are
A plurality of fixed pressing cylinders arranged in a (lower) region closer to the conveyance reference plane of the plate (rather than the open / close cylinder), and the pressing position with respect to the plate surface of the plate (the pressing surface of the pressing plate) is unchanged;
(Similarly) It is located in the area (upper) far from the conveyance reference plane, and the pressing position on the plate surface of the plate (the pressing surface of the pressing plate) can be changed (up and down) with respect to the pressing position of the fixed pressing cylinder. And a plurality of movable pressing cylinders.
(開閉シリンダよりも)板材の搬送基準面寄りの(下側)領域に配置され、かつ板材の板面(押圧盤の押圧面)に対する押圧位置が不変とされた複数の固定式押圧シリンダと、
(同じく)前記搬送基準面から遠い(上側)領域に配置され、かつ板材の板面(押圧盤の押圧面)に対する押圧位置が固定式押圧シリンダの押圧位置に対して(上下方向へ)変更可能とされた複数の移動式押圧シリンダとを含む場合がある。 The plurality of pressing cylinders are
A plurality of fixed pressing cylinders arranged in a (lower) region closer to the conveyance reference plane of the plate (rather than the open / close cylinder), and the pressing position with respect to the plate surface of the plate (the pressing surface of the pressing plate) is unchanged;
(Similarly) It is located in the area (upper) far from the conveyance reference plane, and the pressing position on the plate surface of the plate (the pressing surface of the pressing plate) can be changed (up and down) with respect to the pressing position of the fixed pressing cylinder. And a plurality of movable pressing cylinders.
このように、複数の押圧シリンダの一部(例えば4本のうちの2本)を固定式押圧シリンダとすることによって、押圧シリンダの押圧位置移動調節機構の簡素化を図ることができる。また、搬送基準面から遠い側の押圧シリンダが移動式押圧シリンダとして位置変更可能となったことにより、板材の大きさが変化したとき板材(搬送基準面と反対側の長辺)との相対的な位置関係が変動しても、移動式押圧シリンダの押圧位置を変更することができる。なお、移動式押圧シリンダの押圧位置移動調節機構には、例えば昇降用油圧シリンダ(流体圧シリンダ)を用いることができる。このようにして、板材の大きさが変化したときに、押圧シリンダの駆動圧力の調整幅(目標値の許容差)や押圧シリンダの駆動距離の調整幅(設定値の許容差)を小幅に留めることができる。
Thus, by using a part of the plurality of pressing cylinders (for example, two of the four cylinders) as fixed pressing cylinders, it is possible to simplify the pressing position movement adjusting mechanism of the pressing cylinders. In addition, the position of the pressing cylinder on the side far from the conveyance reference plane can be changed as a movable pressing cylinder, so that when the size of the plate changes, it is relative to the plate (long side opposite to the conveyance reference plane). Even if the positional relationship fluctuates, the pressing position of the movable pressing cylinder can be changed. For example, an elevating hydraulic cylinder (fluid pressure cylinder) can be used as the pressing position movement adjusting mechanism of the movable pressing cylinder. In this way, when the size of the plate material changes, the adjustment width of the pressing cylinder driving pressure (target value tolerance) and the adjustment distance of the pressing cylinder driving distance (setting value tolerance) are kept small. be able to.
あるいは、複数の押圧シリンダは、押圧盤の押圧面に対する押圧位置が不変とされた偶数の固定式押圧シリンダで構成され、開閉シリンダに関して互いに点対称及び/又は線対称の位置になるように配置される場合がある。
Alternatively, the plurality of pressing cylinders are composed of an even number of fixed pressing cylinders whose pressing positions with respect to the pressing surface of the pressing plate are unchanged, and are arranged so as to be point-symmetrical and / or line-symmetrical with respect to the open / close cylinder. There is a case.
このように、すべての押圧シリンダを固定式とすることによって、押圧シリンダの押圧位置移動調節機構を設けずにすみ、一層の簡素化を図ることができる。また、複数の押圧シリンダが、開閉シリンダに関して互いに点対称及び/又は線対称の位置になるように配置されていると、各押圧シリンダの駆動圧力が押圧盤に対して同時にかつ均等に作用するようになる。
Thus, by making all the pressing cylinders fixed, it is possible to eliminate the need to provide a pressing position movement adjusting mechanism for the pressing cylinders, thereby further simplifying. Further, when the plurality of pressing cylinders are arranged so as to be point-symmetrical and / or line-symmetrical with respect to the open / close cylinder, the driving pressure of each pressing cylinder acts on the pressing plate simultaneously and evenly. become.
(実施例1)
以下、本発明の実施の形態につき図面に示す実施例を参照して説明する。図1はプレス構造を含む横型多段プレス装置の一例を示す正面図である。図1に示す横型多段プレス装置1は、合板、化粧板等のように、複数枚のベニヤ単板の接合面に接着剤を塗布して積層し、矩形板状となした水平状態の多数の被処理板材W1(板材)を、ローダ部200(搬入部)で起立状態に保持してホットプレス部100(加熱加圧部)へ搬入する。ホットプレス部100で所定時間加熱加圧して、所定の厚みに成形された処理済板材W2(積層合板)を、アンローダ部300(搬出部)で再び水平状態に戻して搬出する。 Example 1
Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. FIG. 1 is a front view showing an example of a horizontal multi-stage press apparatus including a press structure. A horizontalmulti-stage press apparatus 1 shown in FIG. 1 has a rectangular plate shape in which a large number of horizontal plates, such as a plywood board and a decorative board, are laminated by applying an adhesive to the joining surfaces of a plurality of veneer single plates. The to-be-processed board | plate material W1 (plate | board material) is hold | maintained in the standing state by the loader part 200 (carry-in part), and is carried in to the hot press part 100 (heating-pressing part). The processed plate material W2 (laminated plywood), which has been heated and pressurized for a predetermined time by the hot press unit 100 and formed to a predetermined thickness, is returned to the horizontal state again by the unloader unit 300 (unloading unit) and unloaded.
以下、本発明の実施の形態につき図面に示す実施例を参照して説明する。図1はプレス構造を含む横型多段プレス装置の一例を示す正面図である。図1に示す横型多段プレス装置1は、合板、化粧板等のように、複数枚のベニヤ単板の接合面に接着剤を塗布して積層し、矩形板状となした水平状態の多数の被処理板材W1(板材)を、ローダ部200(搬入部)で起立状態に保持してホットプレス部100(加熱加圧部)へ搬入する。ホットプレス部100で所定時間加熱加圧して、所定の厚みに成形された処理済板材W2(積層合板)を、アンローダ部300(搬出部)で再び水平状態に戻して搬出する。 Example 1
Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. FIG. 1 is a front view showing an example of a horizontal multi-stage press apparatus including a press structure. A horizontal
ホットプレス部100には、上下方向(起立方向)及び左右方向(搬送方向;搬入方向)に各々所定の間隔を隔てて配置された各一対の上下の横梁101L,101R、102L,102Rを介して、前後方向(押圧方向)に一対の固定フレーム103F,103B(図3参照)が配設されている。上方の横梁101L,101Rに敷設された軌条104L,104Rには、移動ローラ105L,105R(移動部材)が取り付けられている。軌条104L,104R間には、移動ローラ105L,105Rを介して、多数段の熱板130と前後方向に一対又は単一(例えば一対)の押圧盤140F,140B(図3参照)が吊下げ支持されている。固定フレーム103F,103Bには、所定の間隔を隔てて複数(例えば4個)の押圧シリンダ150LH,150RH,150LL,150RL(油圧シリンダ;流体圧シリンダ)がそれぞれ挿通され、そのラム153LH,153RH,153LL,153RLの先端が押圧盤140F,140Bに取り付けられている(図3参照)。なお、固定フレーム103F,103Bのうちいずれか一方が押圧盤を兼ねてもよい。
The hot press unit 100 is provided with a pair of upper and lower horizontal beams 101L, 101R, 102L, and 102R arranged at predetermined intervals in the vertical direction (standing direction) and the horizontal direction (conveying direction; carrying-in direction). A pair of fixed frames 103F and 103B (see FIG. 3) are disposed in the front-rear direction (pressing direction). Moving rollers 105L and 105R (moving members) are attached to the rails 104L and 104R laid on the upper horizontal beams 101L and 101R. Between the rails 104L and 104R, a plurality of hot plates 130 and a pair or single (for example, a pair) pressing plates 140F and 140B (see FIG. 3) are suspended and supported via moving rollers 105L and 105R. Has been. A plurality of (for example, four) pressing cylinders 150LH, 150RH, 150LL, and 150RL (hydraulic cylinders; fluid pressure cylinders) are inserted into the fixed frames 103F and 103B at predetermined intervals, and the rams 153LH, 153RH, and 153LL are inserted. , 153RL are attached to the press plates 140F and 140B (see FIG. 3). Note that one of the fixed frames 103F and 103B may also serve as a pressing plate.
熱板130の下方には、起立状態の被処理板材W1を下側から支持して、ローダ部200からホットプレス部100へ搬入するローラコンベヤ160(搬送体)が配置されている。ローラコンベヤ160は、被処理板材W1を搬入するために、すべての搬入径路K(図3参照)に跨る前後方向の幅を有する複数(例えば4本)の爪付きローラ161を備え、下方の横梁102L,102Rに掛け渡された機枠108に配設されている。ローダ部200からローラコンベヤ160で搬入された被処理板材W1は熱板130で加熱圧着された後、処理済板材W2となって再びローラコンベヤ160でアンローダ部300へ搬出される。
Below the hot plate 130, a roller conveyor 160 (conveyance body) that supports the plate material W <b> 1 in an upright state from below and carries it into the hot press unit 100 from the loader unit 200 is disposed. The roller conveyor 160 includes a plurality of (for example, four) claw rollers 161 having a width in the front-rear direction across all the carry-in paths K (see FIG. 3) in order to carry in the plate material W1. It is arranged on a machine casing 108 that spans 102L and 102R. The processed plate material W1 carried in from the loader unit 200 by the roller conveyor 160 is heated and pressure-bonded by the hot plate 130, and then becomes a processed plate material W2, which is again carried out by the roller conveyor 160 to the unloader unit 300.
ホットプレス部100の搬入側(搬送方向の上流側(後方側))には、ローダ部200が配設されている。ローダ部200には、架台201上に所定の間隔を隔てて左右一対のチェンコンベヤ202L,202R(無端体)が配置されている。チェンコンベヤ202L,202Rにはローダ棚203が設けられている。架台201上には、ホットプレス部100のローラコンベヤ160へ起立状態の被処理板材W1を受け渡すための搬入コンベヤ210(搬入体)が配置されている。搬入コンベヤ210は、すべての被処理板材W1(搬入径路K;図3参照)に跨る前後方向の幅を有する複数(例えば4本)の爪付きローラ211を備えている。
A loader unit 200 is disposed on the carry-in side (upstream side (rear side) in the transport direction) of the hot press unit 100. In the loader unit 200, a pair of left and right chain conveyors 202 </ b> L and 202 </ b> R (endless bodies) are disposed on the frame 201 with a predetermined interval. The chain conveyors 202L and 202R are provided with loader shelves 203. On the gantry 201, a carry-in conveyor 210 (carry-in body) for delivering the plate material W1 in a standing state to the roller conveyor 160 of the hot press unit 100 is disposed. The carry-in conveyor 210 includes a plurality of (for example, four) claw rollers 211 having a width in the front-rear direction that straddles all the processed plate materials W1 (carry-in path K; see FIG. 3).
ホットプレス部100の搬出側(搬送方向の下流側(前方側))には、アンローダ部300が配設されている。アンローダ部300には、架台301上に所定の間隔を隔てて左右一対のチェンコンベヤ302L,302R(無端体)が配置されている。チェンコンベヤ302L,302Rにはアンローダ棚303が設けられている。架台301上には、ホットプレス部100のローラコンベヤ160から起立状態の処理済板材W2を受け取るための搬出コンベヤ310(搬出体)が配置されている。搬出コンベヤ310は、すべての処理済板材W2に跨る前後方向の幅を有する複数(例えば4本)の爪付きローラ311を備えている。
On the carry-out side (downstream side (front side) in the transport direction) of the hot press unit 100, an unloader unit 300 is disposed. In the unloader section 300, a pair of left and right chain conveyors 302L and 302R (endless bodies) are arranged on the frame 301 with a predetermined interval. An unloader shelf 303 is provided on the chain conveyors 302L and 302R. On the gantry 301, an unloading conveyor 310 (unloading body) for receiving the processed plate material W2 in the standing state from the roller conveyor 160 of the hot press unit 100 is disposed. The carry-out conveyor 310 includes a plurality of (for example, four) claw rollers 311 having a width in the front-rear direction across all the processed plate materials W2.
次に、図2はプレス構造の一例を示す平面図、図3はその側面図、図4はプレス閉鎖状態を示す側面図である。図2に示すホットプレス部100(加熱加圧部;プレス構造)には、水平方向における前後位置に固定フレーム103F,103Bを固定配置し、固定フレーム103F,103B間の上部に、平行状態で上方の横梁101L,101Rを設けてある。横梁101L,101Rに設けられた軌条104L,104Rには、前後方向に移動自在な複数の移動ローラ105L,105R(移動部材)を設けている。移動ローラ105L,105Rは、周知のごとくコロの転動状態や、面接触による摺動状態で移動するものであり、要するに水平方向に直線的に移動可能な手段であればよい。
2 is a plan view showing an example of a press structure, FIG. 3 is a side view thereof, and FIG. 4 is a side view showing a press closed state. In the hot press unit 100 (heating and pressing unit; press structure) shown in FIG. 2, fixed frames 103F and 103B are fixedly arranged at the front and rear positions in the horizontal direction, and above the fixed frames 103F and 103B in a parallel state. Horizontal beams 101L and 101R are provided. A plurality of moving rollers 105L and 105R (moving members) movable in the front-rear direction are provided on the rails 104L and 104R provided on the cross beams 101L and 101R. As is well known, the moving rollers 105L and 105R move in a rolling state of a roller or a sliding state by surface contact, and may be any means that can move linearly in the horizontal direction.
各移動ローラ105L,105Rは、プレス閉鎖時に上下方向に起立した被処理板材W1を間に挟んで加熱するために、熱板130の上方側が連結され、これら複数の熱板130は、前後方向に並設状態で吊持されて熱板群を構成する。またプレス開放時には、被処理板材W1が熱板群における熱板130の間に介挿できるように、隣り合う熱板130は搬送方向に平行に位置して所定間隔を保つようにしている。なお、熱板130の内部に、蒸気、熱油などを給排し、その温度を被処理板材W1の種類に応じて維持している。
Each moving roller 105L, 105R is connected to the upper side of the hot plate 130 in order to heat the plate material W1 erected in the vertical direction when the press is closed, and the plurality of hot plates 130 are arranged in the front-rear direction. A hot plate group is formed by being suspended in parallel. Further, when the press is released, the adjacent hot plates 130 are positioned parallel to the transport direction so as to maintain a predetermined interval so that the processed plate material W1 can be inserted between the hot plates 130 in the hot plate group. In addition, steam, hot oil, etc. are supplied / exhausted in the inside of the hot plate 130, and the temperature is maintained according to the kind of to-be-processed board | plate material W1.
また、熱板群の熱板130に連繋し、熱板130を前後方向に移動し、プレス閉鎖およびプレス開放を行うようにした前後一対の押圧盤140F,140Bを備えている。押圧盤140F,140Bは、熱板群における前後方向の両側に位置するそれぞれの熱板130に対向して配設され、押圧盤140F,140Bの上方側を移動ローラ105L,105Rに連結して前後方向に移動自在に吊持する。また、押圧盤140F,140Bは、固定フレーム103F,103Bに設けられる押圧シリンダ150LH,150RH,150LL,150RLのラム153LH,153RH,153LL,153RLと連結し、ラム153LH,153RH,153LL,153RLによって前後方向に往復動自在となしている。なお、図2の押圧盤140F,140Bは、固定フレーム103F,103Bに対していずれも前後方向に往復動する。
Also, a pair of front and rear press plates 140F and 140B are provided which are connected to the hot plate 130 of the hot plate group, move the hot plate 130 in the front-rear direction, and perform press closing and press opening. The press plates 140F and 140B are disposed to face the respective heat plates 130 located on both sides in the front-rear direction of the hot plate group, and the upper sides of the press plates 140F and 140B are connected to the moving rollers 105L and 105R to move forward and backward. Suspend freely in the direction. In addition, the press plates 140F and 140B are connected to the rams 153LH, 153RH, 153LL, and 153RL of the press cylinders 150LH, 150RH, 150LL, and 150RL provided in the fixed frames 103F and 103B, and the front and rear directions are provided by the rams 153LH, 153RH, 153LL, and 153RL. It can be reciprocated freely. 2 are reciprocated in the front-rear direction with respect to the fixed frames 103F and 103B.
この実施例では、各押圧シリンダ150LH,150RH,150LL,150RLのラム153LH,153RH,153LL,153RLは、押圧盤140F,140Bの押圧面141に対する押圧位置が不変となるように、それぞれ押圧盤140F,140Bに固定されている。そして、押圧盤140F,140Bの両外側であって押圧面141の中央付近には、押圧盤140F,140Bを接近・離間させて閉鎖・開放する開閉シリンダ180(油圧シリンダ;流体圧シリンダ)が配置されている(図3,図4参照)。
In this embodiment, the rams 153LH, 153RH, 153LL, and 153RL of the respective pressing cylinders 150LH, 150RH, 150LL, and 150RL are respectively configured so that the pressing positions of the pressing plates 140F and 140B with respect to the pressing surface 141 are unchanged. It is fixed to 140B. An open / close cylinder 180 (hydraulic cylinder; fluid pressure cylinder) that closes and opens the press plates 140F and 140B by approaching and separating them is disposed on both outer sides of the press plates 140F and 140B and in the vicinity of the center of the press surface 141. (See FIGS. 3 and 4).
したがって、起立状の被処理板材W1は、矩形状の長辺の一方(下辺)を搬送基準面B(図5参照)として熱板130の間に搬入される。被処理板材W1と熱板130とは厚さ方向に多数重ね合わされて、ホットプレス用の被処理体Wを構成する。押圧シリンダ150LH,150RH,150LL,150RLによる被処理体W(被処理板材W1)の加熱押圧処理に先立ち、開閉シリンダ180が押圧盤140F,140Bを閉鎖する。押圧シリンダ150LH,150RH,150LL,150RLは、例えば被処理板材W1の大きさや材質が変化しても、加熱押圧後の被処理体Wの全体厚さが押圧面141の全体にわたって所定の許容寸法の範囲内にあるように、個別に駆動制御されて加熱押圧処理を行う。押圧シリンダ150LH,150RH,150LL,150RLによる加熱押圧処理が完了すると、開閉シリンダ180は押圧盤140F,140Bを開放する。
Therefore, the upright processed plate material W1 is carried between the hot plates 130 with one of the long sides of the rectangular shape (lower side) as the conveyance reference plane B (see FIG. 5). A large number of the to-be-processed plate material W1 and the hot plate 130 are overlapped in the thickness direction to constitute an object to be processed W for hot pressing. Prior to the heat pressing process of the workpiece W (processed plate material W1) by the pressing cylinders 150LH, 150RH, 150LL, and 150RL, the open / close cylinder 180 closes the pressing plates 140F and 140B. The pressing cylinders 150LH, 150RH, 150LL, and 150RL have a predetermined allowable dimension over the entire pressing surface 141, for example, even if the size and material of the processing target plate material W1 change. The heating and pressing process is performed under individual drive control so as to be within the range. When the heat pressing process by the pressing cylinders 150LH, 150RH, 150LL, and 150RL is completed, the opening / closing cylinder 180 opens the pressing plates 140F and 140B.
次に、本発明に係るプレス制御システムの具体的構造を図5~図7に示す。図5はプレス制御システムの配置関係の一例を示す正面図、図6はその油圧回路図、図7はその電気的構成を示すブロック図を表わす。
Next, the specific structure of the press control system according to the present invention is shown in FIGS. FIG. 5 is a front view showing an example of the arrangement relationship of the press control system, FIG. 6 is a hydraulic circuit diagram thereof, and FIG. 7 is a block diagram showing its electrical configuration.
図5の配置図に示すように、4本の押圧シリンダ150LH,150RH,150LL,150RLは、開閉シリンダ180の周囲を取り巻くように(放射状に)押圧盤140F,140Bの押圧面141に対して配置されている。具体的には、押圧シリンダ150LH,150RH,150LL,150RLは、開閉シリンダ180に関して互いに点対称及び線対称になるように配置されているので、各押圧シリンダ150LH,150RH,150LL,150RLに付与される駆動圧力(すなわちシリンダ内圧)が押圧盤140F,140Bに対して同時にかつ均等に作用するようになる。
As shown in the layout diagram of FIG. 5, the four pressing cylinders 150LH, 150RH, 150LL, and 150RL are arranged with respect to the pressing surface 141 of the pressing plates 140F and 140B so as to surround the opening / closing cylinder 180 (radially). Has been. Specifically, the pressing cylinders 150LH, 150RH, 150LL, and 150RL are arranged so as to be point-symmetrical and line-symmetric with respect to the opening / closing cylinder 180, and thus are applied to the pressing cylinders 150LH, 150RH, 150LL, and 150RL. The driving pressure (that is, the cylinder internal pressure) acts simultaneously and evenly on the pressing plates 140F and 140B.
また、4本の押圧シリンダ150LH,150RH,150LL,150RLは、押圧盤140F,140Bの押圧面141に対する押圧位置が搬送基準面B(ローラコンベヤ160)に沿って上下2列に並ぶように分散配置されている。すなわち、開閉シリンダ180よりも搬送基準面Bから遠い上側領域に配置される左上押圧シリンダ150LH及び右上押圧シリンダ150RHが上方列、搬送基準面B寄りの下側領域に配置される左下押圧シリンダ150LL及び右下押圧シリンダ150RLが下方列を構成する。このように、押圧盤140F,140Bの押圧面141に対して押圧シリンダ150LH,150RH,150LL,150RLを均等に配置することにより、加熱押圧時に被処理板材W1の傾きが発生しにくくなる。
In addition, the four pressing cylinders 150LH, 150RH, 150LL, and 150RL are dispersedly arranged so that the pressing positions of the pressing plates 140F and 140B with respect to the pressing surface 141 are aligned in two rows along the conveyance reference surface B (roller conveyor 160). Has been. That is, the upper left pressing cylinder 150LH and the upper right pressing cylinder 150RH arranged in the upper region farther from the conveyance reference plane B than the open / close cylinder 180 are the upper left row and the lower left pressing cylinder 150LL arranged in the lower region near the conveyance reference plane B and The lower right pressing cylinder 150RL constitutes the lower row. As described above, by uniformly disposing the pressing cylinders 150LH, 150RH, 150LL, and 150RL with respect to the pressing surface 141 of the pressing plates 140F and 140B, it is difficult for the processed plate material W1 to be inclined during the heating and pressing.
各押圧シリンダ150LH,150RH,150LL,150RLは、被処理体Wの全体厚さの減少量をラム153LH,153RH,153LL,153RLの移動量(駆動距離)として検出する押圧シリンダ用リニアエンコーダ151LH,151RH,151LL,151RL(移動量検出手段;距離検出手段)と、押圧盤140F,140Bの押圧力を押圧シリンダ150LH,150RH,150LL,150RLのシリンダ内圧(駆動圧力)として検出する押圧シリンダ用圧力センサ152LH,152RH,152LL,152RL(圧力検出手段)とを備えている。一方、開閉シリンダ180は、押圧盤140F,140Bの閉鎖・開放をシリンダ内圧の高低で検出する開閉シリンダ用圧力スイッチ181(圧力検出手段)を備えている。なお、ラム移動量表示部106LH,106RH,106LL,106RL及びシリンダ内圧表示部107LH,107RH,107LL,107RLが設けられ、リニアエンコーダ151LH,151RH,151LL,151RLや圧力センサ152LH,152RH,152LL,152RLの検出値がトランスミッタ(送信器)等を介して表示される。
The pressing cylinders 150LH, 150RH, 150LL, and 150RL are pressure cylinder linear encoders 151LH and 151RH that detect the amount of decrease in the overall thickness of the workpiece W as the amount of movement (drive distance) of the rams 153LH, 153RH, 153LL, and 153RL. , 151LL, 151RL (movement amount detection means; distance detection means), and pressure cylinder pressure sensor 152LH for detecting the pressing force of the pressing plates 140F, 140B as the cylinder internal pressure (driving pressure) of the pressing cylinders 150LH, 150RH, 150LL, 150RL. , 152RH, 152LL, 152RL (pressure detection means). On the other hand, the open / close cylinder 180 is provided with an open / close cylinder pressure switch 181 (pressure detection means) for detecting the closing / opening of the press plates 140F, 140B by the level of the cylinder internal pressure. A ram movement amount display unit 106LH, 106RH, 106LL, 106RL and a cylinder internal pressure display unit 107LH, 107RH, 107LL, 107RL are provided, and linear encoders 151LH, 151RH, 151LL, 151RL and pressure sensors 152LH, 152RH, 152LL, 152RL are provided. The detected value is displayed via a transmitter (transmitter) or the like.
図6の油圧回路図に示すように、電動モータ108で駆動される可変容量型の押圧シリンダ用油圧ポンプ154と各押圧シリンダ150LH,150RH,150LL,150RLとの間には、4ポート3位置切換型の電磁切換弁155LH,155RH,155LL,155RLがそれぞれ配置されている。各電磁切換弁155LH,155RH,155LL,155RLは、中立のa位置からb位置に切り換えられたとき油圧ポンプ154と押圧シリンダ150LH,150RH,150LL,150RLとを押圧盤140F,140Bの閉鎖方向に接続するとともに、c位置に切り換えられたとき同じく押圧盤140F,140Bの開放方向に接続する。なお、押圧シリンダ150LH,150RH,150LL,150RLを高精度で駆動制御するために、これらの電磁切換弁155LH,155RH,155LL,155RLに対して、例えばデューティ比に基づくPWM制御(デューティ制御とも通称される)を適用することが望ましい。
As shown in the hydraulic circuit diagram of FIG. 6, there is a four-port three-position switching between the variable displacement type press cylinder hydraulic pump 154 driven by the electric motor 108 and each press cylinder 150LH, 150RH, 150LL, 150RL. The electromagnetic switching valves 155LH, 155RH, 155LL, 155RL of the type are respectively arranged. Each electromagnetic switching valve 155LH, 155RH, 155LL, 155RL connects the hydraulic pump 154 and the press cylinders 150LH, 150RH, 150LL, 150RL in the closing direction of the press panels 140F, 140B when switched from the neutral a position to the b position. At the same time, when the position is switched to the position c, the press plates 140F and 140B are connected in the opening direction. In order to drive and control the pressing cylinders 150LH, 150RH, 150LL, and 150RL with high accuracy, the electromagnetic switching valves 155LH, 155RH, 155LL, and 155RL are controlled by, for example, PWM control based on a duty ratio (also commonly referred to as duty control). It is desirable to apply
電動モータ108で駆動される可変容量型の開閉シリンダ用油圧ポンプ182と開閉シリンダ180との間には、4ポート3位置切換型の電磁切換弁183が配置されている。電磁切換弁183は、中立のa位置からb位置に切り換えられたとき油圧ポンプ154と開閉シリンダ180とを押圧盤140F,140Bの閉鎖方向に接続するとともに、c位置に切り換えられたとき同じく押圧盤140F,140Bの開放方向に接続する。
Between the variable displacement type open / close cylinder hydraulic pump 182 driven by the electric motor 108 and the open / close cylinder 180, a 4-port 3-position switching type electromagnetic switching valve 183 is disposed. The electromagnetic switching valve 183 connects the hydraulic pump 154 and the opening / closing cylinder 180 in the closing direction of the pressing plates 140F and 140B when the neutral a position is switched to the b position, and also when the switching position is switched to the c position. Connect in the opening direction of 140F and 140B.
図7のブロック図に示すように、プレス制御システムのシリンダ制御部である制御基板20は、演算装置であるCPU21と、読み取り専用記憶装置であるROM23と、読み書き可能な主記憶装置でありワークエリアとして使用されるRAM22と、入出力インターフェイス(I/F)24とを中心に構成されている。これらの装置は、バス25で相互に送受信可能に接続されている。ROM23には、プレス制御を実行するための各種制御プログラム23a,23b,23cや加熱押圧時の被処理板材W1の傾きを押圧盤140F,140B(押圧面141)の傾きとして演算するための傾き算出プログラム23dの他、被処理板材W1の大きさや材質を初期設定するための選択テーブル23e,23f等が予め格納・記憶されている。
As shown in the block diagram of FIG. 7, the control board 20 that is a cylinder control unit of the press control system includes a CPU 21 that is an arithmetic device, a ROM 23 that is a read-only storage device, and a readable / writable main storage device that is a work area. And the input / output interface (I / F) 24. These devices are connected via a bus 25 so as to be able to transmit and receive each other. In the ROM 23, various control programs 23a, 23b, 23c for executing the press control and inclination calculation for calculating the inclination of the processed plate material W1 at the time of heating and pressing as the inclination of the pressing plates 140F, 140B (pressing surface 141). In addition to the program 23d, selection tables 23e and 23f for initial setting of the size and material of the processed plate material W1 are stored and stored in advance.
図7に示すように、ホットプレス部100の各部から次の信号が入出力インターフェース24を介して制御基板20へ入力されている。
・大きさ選択スイッチ10:被処理板材W1の大きさを押しボタン等によって人為的に選択入力又はデータ入力したときのスイッチ信号;
・材質選択スイッチ11:被処理板材W1の材質(硬質材、軟質材)を押しボタン等によって人為的に選択入力又はデータ入力したときのスイッチ信号;
・開閉シリンダ用圧力スイッチ181:開閉シリンダ180によって押圧盤140F,140Bを閉鎖・開放したときのシリンダ内圧の高低検出信号;
・押圧シリンダ用リニアエンコーダ151LH,151RH,151LL,151RL:ラム153LH,153RH,153LL,153RLの移動量の検出信号;
・押圧シリンダ用圧力センサ152LH,152RH,152LL,152RL:押圧シリンダ150LH,150RH,150LL,150RLのシリンダ内圧の検出信号。 As shown in FIG. 7, the following signals are inputted to thecontrol board 20 from each part of the hot press part 100 via the input / output interface 24.
A size selection switch 10: a switch signal when the size of the plate W1 to be processed is manually selected or input by a push button or the like;
Material selection switch 11: A switch signal when the material (hard material, soft material) of the processed plate material W1 is artificially selected or input by a push button or the like;
-Opening / closing cylinder pressure switch 181: Cylinder internal pressure level detection signal when the pressing plates 140F, 140B are closed / opened by the opening / closing cylinder 180;
・ Pressure cylinder linear encoders 151LH, 151RH, 151LL, 151RL: detection signals of the movement amounts of the rams 153LH, 153RH, 153LL, 153RL;
Pressing cylinder pressure sensors 152LH, 152RH, 152LL, 152RL: cylinder internal pressure detection signals of the pressing cylinders 150LH, 150RH, 150LL, 150RL.
・大きさ選択スイッチ10:被処理板材W1の大きさを押しボタン等によって人為的に選択入力又はデータ入力したときのスイッチ信号;
・材質選択スイッチ11:被処理板材W1の材質(硬質材、軟質材)を押しボタン等によって人為的に選択入力又はデータ入力したときのスイッチ信号;
・開閉シリンダ用圧力スイッチ181:開閉シリンダ180によって押圧盤140F,140Bを閉鎖・開放したときのシリンダ内圧の高低検出信号;
・押圧シリンダ用リニアエンコーダ151LH,151RH,151LL,151RL:ラム153LH,153RH,153LL,153RLの移動量の検出信号;
・押圧シリンダ用圧力センサ152LH,152RH,152LL,152RL:押圧シリンダ150LH,150RH,150LL,150RLのシリンダ内圧の検出信号。 As shown in FIG. 7, the following signals are inputted to the
A size selection switch 10: a switch signal when the size of the plate W1 to be processed is manually selected or input by a push button or the like;
Material selection switch 11: A switch signal when the material (hard material, soft material) of the processed plate material W1 is artificially selected or input by a push button or the like;
-Opening / closing cylinder pressure switch 181: Cylinder internal pressure level detection signal when the
・ Pressure cylinder linear encoders 151LH, 151RH, 151LL, 151RL: detection signals of the movement amounts of the rams 153LH, 153RH, 153LL, 153RL;
Pressing cylinder pressure sensors 152LH, 152RH, 152LL, 152RL: cylinder internal pressure detection signals of the pressing cylinders 150LH, 150RH, 150LL, 150RL.
同様に、次の信号が入出力インターフェース24を介して制御基板20からホットプレス部100の各部へ出力されている。
・押圧シリンダ150LH,150RH,150LL,150RL:押圧盤140F,140B(押圧面141)を押圧し、被処理体W(被処理板材W1)の傾きを是正(緩和)しつつ加熱押圧するための制御出力信号;
・開閉シリンダ180:押圧盤140F,140B(押圧面141)を接近・離間させて閉鎖・開放するための制御出力信号。 Similarly, the next signal is output from thecontrol board 20 to each unit of the hot press unit 100 via the input / output interface 24.
・ Pressing cylinders 150LH, 150RH, 150LL, 150RL: Control for pressing and pressing the pressing plates 140F, 140B (pressing surface 141) and correcting (relaxing) the inclination of the object to be processed W (processing plate material W1). Output signal;
Opening / closing cylinder 180: A control output signal for closing / opening the press panels 140F and 140B (pressing surface 141) by approaching / separating them.
・押圧シリンダ150LH,150RH,150LL,150RL:押圧盤140F,140B(押圧面141)を押圧し、被処理体W(被処理板材W1)の傾きを是正(緩和)しつつ加熱押圧するための制御出力信号;
・開閉シリンダ180:押圧盤140F,140B(押圧面141)を接近・離間させて閉鎖・開放するための制御出力信号。 Similarly, the next signal is output from the
・ Pressing cylinders 150LH, 150RH, 150LL, 150RL: Control for pressing and pressing the
Opening / closing cylinder 180: A control output signal for closing / opening the
次に、図8~図10のフローチャートを用い、図5の表示部106LH~107RLを参照して、ホットプレス部100におけるプレス制御について説明する。図8は図7のプレス準備処理プログラム23aに対応している。同様に、図9は硬質材用プレス処理プログラム23bに、図10は軟質材用プレス処理プログラム23cに、それぞれ対応している。
Next, press control in the hot press unit 100 will be described with reference to the display units 106LH to 107RL in FIG. 5 using the flowcharts in FIGS. FIG. 8 corresponds to the press preparation processing program 23a of FIG. Similarly, FIG. 9 corresponds to the hard material press processing program 23b, and FIG. 10 corresponds to the soft material press processing program 23c.
図8に示すプレス準備処理では、まず、S1にて大きさ選択スイッチ10及び材質選択スイッチ11により被処理板材W1の大きさ(6尺材、8尺材、10尺材等)と材質(硬質材、軟質材等)を手操作入力する。その入力内容に基づき、ROM23の選択テーブル23e,23f(図7)を参照して微調整を行う。具体的には、S2において、被処理板材W1の大きさに応じて、ラム移動量の設定値S及びシリンダ内圧の目標値Pを微調整する。次いで、S3にて選択した材質を確認し、材質が硬質材であれば(S3でYES)、S4にて硬質材用プレス処理を実行してプレス準備処理を終了し、材質が軟質材であれば(S3でNO)、S6にて軟質材用プレス処理を実行する。
In the press preparation process shown in FIG. 8, first, in S1, the size selection switch 10 and the material selection switch 11 use the size (6 scale material, 8 scale material, 10 scale material, etc.) and material (hard) of the plate material W1 to be processed. Material, soft material, etc.). Based on the input contents, fine adjustment is performed with reference to the selection tables 23e and 23f (FIG. 7) of the ROM 23. Specifically, in S2, the set value S of the ram movement amount and the target value P of the cylinder internal pressure are finely adjusted according to the size of the plate material W1 to be processed. Next, the material selected in S3 is confirmed. If the material is a hard material (YES in S3), the hard material press process is executed in S4 and the press preparation process is completed. If the material is a soft material, If (NO in S3), the soft material pressing process is executed in S6.
図9は図8の硬質材用プレス処理サブルーチン(S4)を示す。被処理板材W1が硬質材の場合、押圧シリンダ150LH,150RH,150LL,150RLによる押圧盤140F,140Bの押圧に伴って、各シリンダ内圧を所定の目標範囲P±ΔP内に到達させる。そのとき各押圧シリンダ150LH,150RH,150LL,150RLのラム移動量が所定の設定範囲S±ΔS内であれば、各ラム移動量の検出値から、傾き算出プログラム23d(図7参照)にて被処理板材W1の傾きを押圧盤140F,140B(押圧面141)の傾きとして演算する。その傾きが所定値を超える場合には、是正(緩和)すべき傾きが被処理板材W1に発生していると考えられるので、シリンダ内圧に係る目標範囲P±ΔPの上下限値P+ΔP,P-ΔPを各々P+2ΔP,P-2ΔPに広げて対応するシリンダ内圧を増圧(又は減圧)する。
FIG. 9 shows the hard material press processing subroutine (S4) of FIG. When the plate material W1 to be processed is a hard material, each cylinder internal pressure is allowed to reach a predetermined target range P ± ΔP as the pressing plates 140F and 140B are pressed by the pressing cylinders 150LH, 150RH, 150LL, and 150RL. At that time, if the ram movement amount of each of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is within a predetermined set range S ± ΔS, the inclination calculation program 23d (see FIG. 7) uses the detected value of each ram movement amount. The inclination of the processing plate material W1 is calculated as the inclination of the pressing plates 140F and 140B (pressing surface 141). If the inclination exceeds a predetermined value, it is considered that an inclination to be corrected (relaxed) occurs in the processed plate material W1, and therefore the upper and lower limit values P + ΔP, P− of the target range P ± ΔP related to the cylinder internal pressure. ΔP is expanded to P + 2ΔP and P-2ΔP, respectively, and the corresponding cylinder internal pressure is increased (or reduced).
具体的には、プレス開始スイッチ(図示せず)がONされると(S41でYES)、S42にて電磁切換弁183をb位置に切り換えて、開閉シリンダ180により押圧盤140F,140Bを閉鎖駆動させ、圧力スイッチ181の検知により駆動を停止する。その後S43にて、押圧シリンダ150LH,150RH,150LL,150RLにより押圧盤140F,140Bを一斉に押圧駆動する。S44にて各押圧シリンダ150LH,150RH,150LL,150RLの内圧が目標範囲P±ΔP(例えば、7.0±0.2MPa)内に到達したかを、圧力センサ152LH,152RH,152LL,152RLで確認する。図5のように各シリンダ内圧が目標範囲P±ΔP内に到達していれば(S44でYES)、S45にて各ラム移動量が設定範囲S±ΔS(例えば、1770±20mm)内であるかをリニアエンコーダ151LH,151RH,151LL,151RLで確認する。図5のように各ラム移動量が設定範囲S±ΔS内であれば(S45でYES)、S46にて各ラム移動量の検出値から、押圧盤140F,140B(押圧面141)の傾きを演算する。
Specifically, when a press start switch (not shown) is turned ON (YES in S41), the electromagnetic switching valve 183 is switched to the b position in S42, and the pressing plates 140F and 140B are driven to close by the opening / closing cylinder 180. The driving is stopped by the detection of the pressure switch 181. After that, in S43, the pressing plates 140F and 140B are simultaneously pressed by the pressing cylinders 150LH, 150RH, 150LL, and 150RL. In S44, it is confirmed by the pressure sensors 152LH, 152RH, 152LL, and 152RL whether the internal pressures of the pressing cylinders 150LH, 150RH, 150LL, and 150RL have reached the target range P ± ΔP (for example, 7.0 ± 0.2 MPa). To do. If each cylinder internal pressure has reached the target range P ± ΔP as shown in FIG. 5 (YES in S44), each ram movement amount is within the set range S ± ΔS (for example, 1770 ± 20 mm) in S45. Is confirmed by the linear encoders 151LH, 151RH, 151LL, and 151RL. If each ram movement amount is within the set range S ± ΔS as shown in FIG. 5 (YES in S45), the inclination of the press plates 140F, 140B (pressing surface 141) is determined from the detected value of each ram movement amount in S46. Calculate.
次に、S47にて、S46で算出した傾きの大小を判別する。傾きが所定値(例えば5°)を超える場合には(S47でNO)、S48にて、押圧盤140F,140B(押圧面141)の傾きから判断して、傾きを是正(緩和)するためにさらに押圧する(あるいは、場合によっては逆に戻す)必要のある押圧シリンダを決定する。さらにS49にて、傾きを是正(緩和)するためにさらに押圧する場合には押圧シリンダの内圧がP+2ΔP(例えば、7.0+0.4MPa)以下であるかを確認し、戻す場合には押圧シリンダの内圧がP-2ΔP(例えば、7.0-0.4MPa)以上であるかを確認する。そのシリンダ内圧がP+2ΔP以下(又はP-2ΔP以上)であれば(S49でYES)、S50にて対応する押圧シリンダの内圧を増加(又は減少)して、押圧盤140F,140B(押圧面141)の傾きを是正(緩和)し、S45に戻る。
Next, in S47, the magnitude of the slope calculated in S46 is determined. When the inclination exceeds a predetermined value (for example, 5 °) (NO in S47), in S48, the inclination is corrected (relaxed) by judging from the inclination of the press plates 140F and 140B (pressing surface 141). Further, a pressing cylinder that needs to be pressed (or reversed in some cases) is determined. Further, in S49, when further pressing is performed to correct (relax) the inclination, it is confirmed whether the internal pressure of the pressing cylinder is P + 2ΔP (for example, 7.0 + 0.4 MPa) or less. It is confirmed whether the internal pressure is P-2ΔP (for example, 7.0-0.4 MPa) or more. If the cylinder internal pressure is P + 2ΔP or lower (or P-2ΔP or higher) (YES in S49), the internal pressure of the corresponding pressing cylinder is increased (or decreased) in S50, and the pressing plates 140F and 140B (pressing surface 141) Is corrected (relaxed), and the process returns to S45.
図5において、下方列の押圧シリンダ150LL,150RLのラム移動量(1750mm)が相対的に小であり、傾きが所定値超と算出された場合(S47でNO)、下方列の押圧シリンダ150LL,150RLをさらに押圧する必要があると決定する(S48)。押圧シリンダ150LL,150RLのシリンダ内圧(7.0MPa)はP+2ΔP以下であるから(S49でYES)、傾きを是正(緩和)するために電磁切換弁155LL,155RLのデューティ比を高め、押圧シリンダ150LL,150RLへの流量を増加する(S50)。
In FIG. 5, when the amount of ram movement (1750 mm) of the lower row pressing cylinders 150LL and 150RL is relatively small and the inclination is calculated to exceed a predetermined value (NO in S47), the lower row pressing cylinders 150LL, It is determined that 150RL needs to be further pressed (S48). Since the cylinder internal pressure (7.0 MPa) of the pressing cylinders 150LL and 150RL is P + 2ΔP or less (YES in S49), the duty ratio of the electromagnetic switching valves 155LL and 155RL is increased to correct (relax) the inclination, and the pressing cylinders 150LL and 150RL The flow rate to 150RL is increased (S50).
このようにして、押圧盤140F,140B(押圧面141)の傾きが所定値以下に是正(緩和)されたとき、あるいは当初から傾きが所定値以下であったとき(S47でYES)、S52にて全押圧シリンダ150LH,150RH,150LL,150RLの押圧駆動を停止する。さらにS53にて、所定時間経過後(例えば、10秒後)に電磁切換弁155LH,155RH,155LL,155RL,183を各々c位置に切り換えて、全押圧シリンダ150LH,150RH,150LL,150RL及び開閉シリンダ180により押圧盤140F,140Bを開放駆動させ、圧力センサ152LH,152RH,152LL,152RL及び圧力スイッチ181の検知により駆動を停止して硬質材用プレス処理を終了する。なお、各ラム移動量が設定範囲S±ΔS内でない場合(S45でNO)、及び傾きを是正(緩和)するためにさらに押圧する(又は戻す)必要のある押圧シリンダの内圧がP+2ΔP超(又はP-2ΔP未満)である場合(S49でNO)には、不良品となる可能性が大きいので、S51にて警報を発して処理を中断する。
In this way, when the inclination of the press plates 140F, 140B (pressing surface 141) is corrected (relaxed) to a predetermined value or less, or when the inclination has been equal to or less than the predetermined value from the beginning (YES in S47), the process goes to S52. Then, the pressing drive of all the pressing cylinders 150LH, 150RH, 150LL, 150RL is stopped. Further, in S53, after a predetermined time has elapsed (for example, after 10 seconds), the electromagnetic switching valves 155LH, 155RH, 155LL, 155RL, and 183 are switched to the c position, respectively, and all the pressing cylinders 150LH, 150RH, 150LL, 150RL, and the opening / closing cylinders are switched. The press plates 140F and 140B are driven to open by 180, and the driving is stopped by the detection of the pressure sensors 152LH, 152RH, 152LL, and 152RL and the pressure switch 181 to end the hard material pressing process. If each ram movement amount is not within the set range S ± ΔS (NO in S45), and the internal pressure of the pressing cylinder that needs to be further pressed (or returned) to correct (relax) the inclination exceeds P + 2ΔP (or If it is less than P-2ΔP (NO in S49), there is a high possibility of a defective product, so an alarm is issued in S51 and the process is interrupted.
欅、ラワンのように硬く弾力性や反発力が相対的に大きい硬質材では、反発による戻り(スプリングバック)現象で押圧盤140F,140Bが傾きやすい。そこで、まず各シリンダ内圧を目標範囲P±ΔP内に到達させ、そのときの各押圧シリンダ150LH,150RH,150LL,150RLのラム移動量が設定範囲S±ΔS内であって、押圧盤140F,140Bの傾きが所定値を超える場合には、さらにシリンダ内圧を許容範囲P+2ΔPまで高めて傾きを是正(緩和)する。このようにして、押圧シリンダ150LH,150RH,150LL,150RLの駆動を圧力重視で個別に制御する。特に硬質材における戻り現象によって押圧盤140F,140Bが傾いても、被処理体W(被処理板材W1+熱板130)の全体厚さを所定の許容寸法に仕上げる過程において押圧盤140F,140Bの傾きを是正(緩和)できるので、不良品の発生を抑制し製品歩留まりを向上させることができる。
欅 In hard materials such as Lauan and hard materials with relatively large elasticity and repulsion, the press plates 140F and 140B tend to tilt due to the rebound (spring back) phenomenon. Therefore, first, each cylinder internal pressure is made to reach the target range P ± ΔP, and the ram movement amount of each of the pressing cylinders 150LH, 150RH, 150LL, 150RL at that time is within the setting range S ± ΔS, and the pressing plates 140F, 140B. When the inclination of exceeds the predetermined value, the cylinder internal pressure is further increased to the allowable range P + 2ΔP to correct (relax) the inclination. In this way, the driving of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is individually controlled with emphasis on pressure. In particular, even if the pressing plates 140F and 140B are inclined due to the return phenomenon in the hard material, the inclination of the pressing plates 140F and 140B is performed in the process of finishing the entire thickness of the object to be processed W (processed plate material W1 + hot plate 130) to a predetermined allowable dimension. Therefore, the occurrence of defective products can be suppressed and the product yield can be improved.
図10は図8の軟質材用プレス処理サブルーチン(S6)を示す。被処理板材W1が軟質材の場合、押圧シリンダ150LH,150RH,150LL,150RLによる押圧盤140F,140Bの押圧に伴って、各ラム移動量を所定の設定範囲S±ΔSの下限値S-ΔSに到達させる。そのとき、各シリンダ内圧が所定の目標範囲P±ΔPの上限値P+ΔP以下であれば、各ラム移動量の検出値から、傾き算出プログラム23d(図7参照)にて押圧盤140F,140B(押圧面141)の傾きを演算する。その傾きが所定値を超える場合には、是正(緩和)すべき傾きが被処理板材W1に発生していると考えられるので、対応する押圧シリンダのラム移動量が設定範囲S±ΔS内において対応するシリンダ内圧を目標範囲P±ΔP内で増圧する。
FIG. 10 shows the soft material press processing subroutine (S6) of FIG. When the processed plate material W1 is a soft material, each ram movement amount is set to the lower limit value S−ΔS of the predetermined setting range S ± ΔS in accordance with the pressing of the pressing plates 140F, 140B by the pressing cylinders 150LH, 150RH, 150LL, 150RL. To reach. At this time, if each cylinder internal pressure is equal to or less than the upper limit value P + ΔP of the predetermined target range P ± ΔP, the pressure discs 140F and 140B (pressing force) are detected by the inclination calculation program 23d (see FIG. 7) from the detected value of each ram movement amount. The inclination of the surface 141) is calculated. When the inclination exceeds a predetermined value, it is considered that an inclination to be corrected (relaxed) is generated in the processed plate material W1, so that the ram movement amount of the corresponding pressing cylinder corresponds within the set range S ± ΔS. The cylinder internal pressure is increased within the target range P ± ΔP.
具体的には、プレス開始スイッチ(図示せず)がONされると(S61でYES)、S62にて電磁切換弁183をb位置に切り換えて、開閉シリンダ180により押圧盤140F,140Bを閉鎖駆動させ、圧力スイッチ181の検知により駆動を停止する。その後S63にて、押圧シリンダ150LH,150RH,150LL,150RLにより押圧盤140F,140Bを一斉に押圧駆動する。S64にて各ラム153LH,153RH,153LL,153RLの移動量が設定範囲S±ΔS(例えば、1770±20mm)の下限値S-ΔS(例えば1750mm)に到達したかを、リニアエンコーダ151LH,151RH,151LL,151RLで確認する。図5のように、各ラム移動量が下限値S-ΔS以上であれば(S64でYES)、S65にて各押圧シリンダ150LH,150RH,150LL,150RLの内圧が目標範囲P±ΔP(例えば、7.0±0.2MPa)の上限値P+ΔP(例えば、7.2MPa)以下であるかを、圧力センサ152LH,152RH,152LL,152RLで確認する。図5のように各シリンダ内圧が上限値P+ΔP以下であれば(S65でYES)、S66にて各ラム移動量の検出値から、押圧盤140F,140B(押圧面141)の傾きを演算する。
Specifically, when a press start switch (not shown) is turned on (YES in S61), the electromagnetic switching valve 183 is switched to the b position in S62, and the pressing plates 140F and 140B are driven to be closed by the opening / closing cylinder 180. The driving is stopped by the detection of the pressure switch 181. After that, in S63, the pressing plates 140F and 140B are simultaneously pressed and driven by the pressing cylinders 150LH, 150RH, 150LL, and 150RL. In S64, the linear encoders 151LH, 151RH, whether the movement amounts of the respective rams 153LH, 153RH, 153LL, 153RL have reached the lower limit value S−ΔS (eg, 1750 mm) of the set range S ± ΔS (eg, 1770 ± 20 mm) Confirm with 151LL and 151RL. As shown in FIG. 5, if each ram movement amount is equal to or greater than the lower limit value S−ΔS (YES in S64), the internal pressure of each pressing cylinder 150LH, 150RH, 150LL, 150RL is set to the target range P ± ΔP (eg, It is confirmed by the pressure sensors 152LH, 152RH, 152LL, and 152RL whether or not the upper limit value P + ΔP (for example, 7.2 MPa) is 7.0 ± 0.2 MPa). If each cylinder internal pressure is equal to or less than the upper limit value P + ΔP as shown in FIG. 5 (YES in S65), the inclination of the press plates 140F, 140B (press surface 141) is calculated from the detected value of each ram movement amount in S66.
次に、S67にてS66で算出した傾きの大小を判別する。傾きが所定値(例えば5°)を超える場合には(S67でNO)、S68にて、押圧盤140F,140B(押圧面141)の傾きから判断して、傾きを是正(緩和)するためにさらに押圧する必要のある押圧シリンダを決定する。さらにS69にて、傾きを是正(緩和)するためにさらに押圧する押圧シリンダのラム移動量が設定範囲S±ΔSの上限値S+ΔS(例えば、1790mm)以下であるかを確認する。そのラム移動量が上限値S+ΔS以下であれば(S69でYES)、S70にて対応する押圧シリンダの内圧を増加して、押圧盤140F,140B(押圧面141)の傾きを是正(緩和)し、S65に戻る。
Next, the magnitude of the slope calculated in S66 is determined in S67. If the inclination exceeds a predetermined value (for example, 5 °) (NO in S67), in S68, the inclination is corrected (relaxed) by judging from the inclination of the press plates 140F and 140B (pressing surface 141). Further, a pressing cylinder that needs to be pressed is determined. Further, in S69, it is confirmed whether the ram movement amount of the pressing cylinder that is further pressed to correct (relax) the inclination is equal to or less than the upper limit value S + ΔS (for example, 1790 mm) of the setting range S ± ΔS. If the amount of ram movement is less than or equal to the upper limit value S + ΔS (YES in S69), the internal pressure of the corresponding pressing cylinder is increased in S70, and the inclination of the pressing plates 140F, 140B (pressing surface 141) is corrected (relaxed). , Return to S65.
図5において、下方列の押圧シリンダ150LL,150RLのラム移動量(1750mm)が相対的に小であり、傾きが所定値超と算出された場合(S67でNO)、下方列の押圧シリンダ150LL,150RLをさらに押圧する必要があると決定する(S68)。押圧シリンダ150LL,150RLのラム移動量(1750mm)は上限値S+ΔS以下であるから(S69でYES)、傾きを是正(緩和)するために電磁切換弁155LL,155RLのデューティ比を高め、押圧シリンダ150LL,150RLへの流量を増加する(S70)。
In FIG. 5, when the ram movement amount (1750 mm) of the lower row pressing cylinders 150LL and 150RL is relatively small and the inclination is calculated to exceed a predetermined value (NO in S67), the lower row pressing cylinders 150LL, It is determined that 150RL needs to be further pressed (S68). Since the ram movement amount (1750 mm) of the pressing cylinders 150LL and 150RL is equal to or less than the upper limit value S + ΔS (YES in S69), the duty ratio of the electromagnetic switching valves 155LL and 155RL is increased to correct (relax) the inclination, and the pressing cylinder 150LL , 150RL is increased (S70).
このようにして、押圧盤140F,140B(押圧面141)の傾きが所定値以下に是正(緩和)されたとき、あるいは当初から傾きが所定値以下であったとき(S67でYES)、S72にて全押圧シリンダ150LH,150RH,150LL,150RLの押圧駆動を停止する。さらにS73にて、所定時間経過後(例えば10秒後)に電磁切換弁155LH,155RH,155LL,155RL,183を各々c位置に切り換えて、全押圧シリンダ150LH,150RH,150LL,150RL及び開閉シリンダ180により押圧盤140F,140Bを開放駆動させ、圧力センサ152LH,152RH,152LL,152RL及び圧力スイッチ181の検知により駆動を停止して軟質材用プレス処理を終了する。なお、各シリンダ内圧が上限値P+ΔP超である場合(S65でNO)、及び傾きを是正(緩和)するためにさらに押圧する必要のある押圧シリンダのラム移動量が上限値S+ΔS超である場合(S69でNO)には、不良品となる可能性が大きいので、S71にて警報を発して処理を中断する。
In this way, when the inclination of the pressing plates 140F and 140B (pressing surface 141) is corrected (relaxed) to a predetermined value or less, or when the inclination has been a predetermined value or less from the beginning (YES in S67), the process proceeds to S72. Then, the pressing drive of all the pressing cylinders 150LH, 150RH, 150LL, 150RL is stopped. Further, in S73, after a predetermined time elapses (for example, after 10 seconds), the electromagnetic switching valves 155LH, 155RH, 155LL, 155RL, and 183 are respectively switched to the c position, and all the pressing cylinders 150LH, 150RH, 150LL, 150RL and the opening / closing cylinder 180 are switched. Thus, the pressing plates 140F and 140B are driven to open, and the driving is stopped by the detection of the pressure sensors 152LH, 152RH, 152LL, and 152RL and the pressure switch 181 to finish the soft material pressing process. When each cylinder internal pressure exceeds the upper limit value P + ΔP (NO in S65), and when the ram movement amount of the pressing cylinder that needs to be further pressed to correct (relax) the inclination exceeds the upper limit value S + ΔS ( Since there is a high possibility of being a defective product at NO in S69, an alarm is issued in S71 and the process is interrupted.
杉、桐のように軟らかく弾力性や反発力が相対的に小さい軟質材では、押圧によって容易に厚さが減少しやすく、目標範囲P±ΔP内のシリンダ内圧であっても加熱圧着後の厚さが部分的に(特にシリンダ押圧位置で)規定より薄くなりやすい。そこで、まず各ラム移動量を設定範囲S±ΔSの下限値S-ΔSに到達させ、そのときの各押圧シリンダ150LH,150RH,150LL,150RLのシリンダ内圧が上限値P+ΔP以下であって、押圧盤140F,140Bの傾きが所定値を超える場合には、さらにラム移動量を上限値S+ΔSまで高めて傾きを是正(緩和)する。このようにして、押圧シリンダ150LH,150RH,150LL,150RLの駆動を距離重視で個別に制御する。特に軟質材に対して押圧過剰の発生を防止(監視)しつつ、被処理体W(被処理板材W1+熱板130)の全体厚さを所定の許容寸法に仕上げる過程において押圧盤140F,140Bの傾きを是正(緩和)できるので、不良品の発生を抑制し製品歩留まりを向上させることができる。
Soft materials such as cedar and paulownia that are soft and have a relatively low elasticity and repulsive force can easily be reduced in thickness by pressing, and the thickness after thermocompression bonding can be achieved even if the cylinder pressure is within the target range P ± ΔP. Tends to be thinner than specified (particularly at the cylinder pressing position). Therefore, first, each ram movement amount is made to reach the lower limit value S−ΔS of the set range S ± ΔS, and the cylinder internal pressures of the respective press cylinders 150LH, 150RH, 150LL, 150RL at that time are lower than the upper limit value P + ΔP, When the inclinations of 140F and 140B exceed a predetermined value, the ram movement amount is further increased to the upper limit value S + ΔS to correct (relax) the inclination. In this way, the driving of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is individually controlled with emphasis on distance. In particular, in the process of finishing the entire thickness of the object to be processed W (processed plate material W1 + hot plate 130) to a predetermined allowable size while preventing (monitoring) the occurrence of excessive pressing on the soft material, the press plates 140F and 140B Since the inclination can be corrected (relaxed), the generation of defective products can be suppressed and the product yield can be improved.
以上のように、被処理板材W1の大きさや材質が変化した場合でも、押圧シリンダ150LH,150RH,150LL,150RLの駆動を個別に制御することによって処理済板材W2の厚さを許容寸法の範囲内に保持できるようになる。したがって、頑丈で重い構造物である押圧シリンダ150LH,150RH,150LL,150RLについて、押圧位置を移動調節するための押圧位置移動調節機構を設けなくてもよくなるので、構造の簡素化を図り、組立・設置等に要する製造コストや稼動・修理等に要するランニングコストを削減できる。
As described above, even when the size and material of the processed plate material W1 are changed, the thickness of the processed plate material W2 is kept within the allowable range by individually controlling the driving of the pressing cylinders 150LH, 150RH, 150LL, and 150RL. Will be able to hold. Therefore, the pressing cylinders 150LH, 150RH, 150LL, and 150RL, which are sturdy and heavy structures, do not have to be provided with a pressing position movement adjusting mechanism for moving and adjusting the pressing position. Manufacturing costs required for installation and running costs required for operation and repair can be reduced.
また、シリンダ内圧やラム移動量を各押圧シリンダ150LH,150RH,150LL,150RL毎に検出して制御するので、各押圧シリンダ150LH,150RH,150LL,150RLから得られる検出値(シリンダ内圧とラム移動量)に基づいて直ちに各押圧シリンダ150LH,150RH,150LL,150RLの作動を制御することができ、制御の簡素化と迅速化を図ることができる。さらに、処理済板材W2の個々の厚さではなく被処理体W(処理済板材W2+熱板130)の全体厚さをラム移動量にて検出するので、検出に要する時間も減らすことができる。したがって、制御の遅れが原因となって、押圧盤140F,140Bの傾きが発生し処理済板材W2の厚さの不揃いとなったり、押圧シリンダ150LH,150RH,150LL,150RLの停止が遅れて規格外れ厚さとなったりすることを防止できる。
Further, since the cylinder internal pressure and the ram movement amount are detected and controlled for each of the pressing cylinders 150LH, 150RH, 150LL, and 150RL, the detection values (cylinder internal pressure and ram movement amount) obtained from the pressing cylinders 150LH, 150RH, 150LL, and 150RL are controlled. ) Can immediately control the operation of each pressing cylinder 150LH, 150RH, 150LL, 150RL, and simplification and speeding up of the control can be achieved. Furthermore, since the entire thickness of the object to be processed W (processed plate material W2 + hot plate 130) is detected not by the individual thicknesses of the processed plate material W2 but by the amount of ram movement, the time required for detection can also be reduced. Therefore, due to the delay in control, the inclination of the press plates 140F and 140B occurs, resulting in uneven thickness of the processed plate material W2, or the stop of the press cylinders 150LH, 150RH, 150LL, and 150RL is delayed and out of specification. The thickness can be prevented.
しかも、押圧シリンダ150LH,150RH,150LL,150RLの他に、押圧盤140F,140Bの開閉専用の開閉シリンダ180を設けたので、ロングスパンでの高速移動を要する開閉シリンダ180とショートスパンでの微細移動を要する押圧シリンダ150LH,150RH,150LL,150RLとを使い分けることができる。したがって、押圧盤140F,140Bの開閉動作の迅速化によりホットプレスの作業能率が向上するとともに、押圧シリンダ150LH,150RH,150LL,150RLの駆動制御が押圧盤140F,140Bの開閉動作に影響されずに高精度で行える。
In addition to the pressing cylinders 150LH, 150RH, 150LL, and 150RL, an opening / closing cylinder 180 dedicated to opening and closing the pressing plates 140F and 140B is provided, so that the opening / closing cylinder 180 that requires high-speed movement over a long span and fine movement over a short span The pressing cylinders 150LH, 150RH, 150LL, and 150RL that require a large number can be used properly. Therefore, the work efficiency of the hot press is improved by accelerating the opening / closing operation of the pressing plates 140F, 140B, and the drive control of the pressing cylinders 150LH, 150RH, 150LL, 150RL is not affected by the opening / closing operation of the pressing plates 140F, 140B. Can be done with high accuracy.
(変形例1-1)
図11は図6の変形例を示す油圧回路図である。図11に示す押圧シリンダには、入力信号に基づいて流量又は圧力を制御する制御弁(サーボ弁)と、最終制御位置(駆動距離=ラム移動量)をフィードバック制御する追従機構とが一体化されたサーボアクチュエータであるサーボシリンダ150LH’,150RH’,150LL’,150RL’が用いられている。このように、サーボシリンダ150LH’,150RH’,150LL’,150RL’はサーボ弁と結合・一体化されている(又は、サーボ弁を内蔵していると見ることもできる)ので、図11では図6の電磁切換弁155LH,150RH,150LL,155RLが不要となり、油圧回路の簡素化を図ることができる。また、サーボ弁は総流量と流速とを同時に制御する機能を有しているので、被処理体Wの加熱押圧時に押圧シリンダ150LH’,150RH’,150LL’,150RL’のラム移動量とラム移動速度とを複合調整することができ、一層精密な制御が可能となる。 (Modification 1-1)
FIG. 11 is a hydraulic circuit diagram showing a modification of FIG. In the pressing cylinder shown in FIG. 11, a control valve (servo valve) for controlling the flow rate or pressure based on the input signal and a follow-up mechanism for feedback control of the final control position (drive distance = ram movement amount) are integrated. Servo cylinders 150LH ′, 150RH ′, 150LL ′, 150RL ′, which are servo actuators, are used. As described above, the servo cylinders 150LH ′, 150RH ′, 150LL ′, and 150RL ′ are combined and integrated with the servo valve (or it can be seen that the servo valve is incorporated). 6 electromagnetic switching valves 155LH, 150RH, 150LL, and 155RL are not required, and the hydraulic circuit can be simplified. Since the servo valve has a function of controlling the total flow rate and the flow velocity at the same time, the ram movement amount and ram movement of the pressing cylinders 150LH ′, 150RH ′, 150LL ′, 150RL ′ when the workpiece W is heated and pressed. The speed can be adjusted in combination, and more precise control is possible.
図11は図6の変形例を示す油圧回路図である。図11に示す押圧シリンダには、入力信号に基づいて流量又は圧力を制御する制御弁(サーボ弁)と、最終制御位置(駆動距離=ラム移動量)をフィードバック制御する追従機構とが一体化されたサーボアクチュエータであるサーボシリンダ150LH’,150RH’,150LL’,150RL’が用いられている。このように、サーボシリンダ150LH’,150RH’,150LL’,150RL’はサーボ弁と結合・一体化されている(又は、サーボ弁を内蔵していると見ることもできる)ので、図11では図6の電磁切換弁155LH,150RH,150LL,155RLが不要となり、油圧回路の簡素化を図ることができる。また、サーボ弁は総流量と流速とを同時に制御する機能を有しているので、被処理体Wの加熱押圧時に押圧シリンダ150LH’,150RH’,150LL’,150RL’のラム移動量とラム移動速度とを複合調整することができ、一層精密な制御が可能となる。 (Modification 1-1)
FIG. 11 is a hydraulic circuit diagram showing a modification of FIG. In the pressing cylinder shown in FIG. 11, a control valve (servo valve) for controlling the flow rate or pressure based on the input signal and a follow-up mechanism for feedback control of the final control position (drive distance = ram movement amount) are integrated. Servo cylinders 150LH ′, 150RH ′, 150LL ′, 150RL ′, which are servo actuators, are used. As described above, the servo cylinders 150LH ′, 150RH ′, 150LL ′, and 150RL ′ are combined and integrated with the servo valve (or it can be seen that the servo valve is incorporated). 6 electromagnetic switching valves 155LH, 150RH, 150LL, and 155RL are not required, and the hydraulic circuit can be simplified. Since the servo valve has a function of controlling the total flow rate and the flow velocity at the same time, the ram movement amount and ram movement of the pressing cylinders 150LH ′, 150RH ′, 150LL ′, 150RL ′ when the workpiece W is heated and pressed. The speed can be adjusted in combination, and more precise control is possible.
(変形例1-2)
図12は図9の変形例を示すフローチャートである。図12に示す硬質材用プレス処理サブルーチン(S4)では、押圧シリンダ150LH,150RH,150LL,150RLのラム移動量(駆動距離)が均一範囲内にあるか否かを判定する指標として、図9のS46で演算する押圧盤140F,140B(押圧面141)の傾き(すなわち被処理板材W1の傾き)に代わり、リニアエンコーダ151LH,151RH,151LL,151RL(移動量検出手段;距離検出手段)で検出された各ラム移動量の差(S46’)を用いている。したがって、この変形例では、図7に示す傾き算出プログラム23dを省略して制御の簡素化を図ることができる。 (Modification 1-2)
FIG. 12 is a flowchart showing a modification of FIG. In the hard material press processing subroutine (S4) shown in FIG. 12, as an index for determining whether or not the ram movement amount (drive distance) of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is within a uniform range, FIG. Instead of the inclination of the press plates 140F and 140B (pressing surface 141) calculated in S46 (that is, the inclination of the processed plate material W1), the linear encoders 151LH, 151RH, 151LL, and 151RL (movement amount detection means; distance detection means) are detected. In addition, the difference (S46 ′) in each ram movement amount is used. Therefore, in this modification, the inclination calculation program 23d shown in FIG. 7 can be omitted to simplify the control.
図12は図9の変形例を示すフローチャートである。図12に示す硬質材用プレス処理サブルーチン(S4)では、押圧シリンダ150LH,150RH,150LL,150RLのラム移動量(駆動距離)が均一範囲内にあるか否かを判定する指標として、図9のS46で演算する押圧盤140F,140B(押圧面141)の傾き(すなわち被処理板材W1の傾き)に代わり、リニアエンコーダ151LH,151RH,151LL,151RL(移動量検出手段;距離検出手段)で検出された各ラム移動量の差(S46’)を用いている。したがって、この変形例では、図7に示す傾き算出プログラム23dを省略して制御の簡素化を図ることができる。 (Modification 1-2)
FIG. 12 is a flowchart showing a modification of FIG. In the hard material press processing subroutine (S4) shown in FIG. 12, as an index for determining whether or not the ram movement amount (drive distance) of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is within a uniform range, FIG. Instead of the inclination of the
具体的には、図12のS47’にて各ラム移動量の差の大小を判定する場合、判定に用いるラム移動量の差(最大許容幅;例えば20mm)はラム移動量の設定範囲S±ΔS(例えば、1770±20mm)の幅(最大許容幅;例えば40mm=±20mm)よりも小さく(例えば1/2)設定されている。図5において、下方列の押圧シリンダ150LL,150RLのラム移動量(1750mm)と右上押圧シリンダ150RHのラム移動量(1775mm)との幅(25mm)は最大許容幅(20mm)を超えている(S47’でNO)。そこで、下方列の押圧シリンダ150LL,150RLをさらに押圧する必要があると決定する(S48’)。
Specifically, when determining the difference between the ram movement amounts in S47 ′ of FIG. 12, the ram movement amount difference (maximum allowable width; for example, 20 mm) used for the determination is the ram movement amount setting range S ±. It is set to be smaller (for example, 1/2) than the width (maximum allowable width; for example, 40 mm = ± 20 mm) of ΔS (for example, 1770 ± 20 mm). In FIG. 5, the width (25 mm) between the ram movement amount (1750 mm) of the lower row pressing cylinders 150LL and 150RL and the ram movement amount (1775 mm) of the upper right pressing cylinder 150RH exceeds the maximum allowable width (20 mm) (S47). 'No'). Therefore, it is determined that it is necessary to further press the pressing cylinders 150LL and 150RL in the lower row (S48 ').
(変形例1-3)
図13は図10の変形例を示すフローチャートである。図13に示す軟質材用プレス処理サブルーチン(S6)でも、押圧シリンダ150LH,150RH,150LL,150RLのラム移動量(駆動距離)が均一範囲内にあるか否かを判定する指標として、図10のS66で演算する押圧盤140F,140B(押圧面141)の傾き(すなわち被処理板材W1の傾き)に代わり、リニアエンコーダ151LH,151RH,151LL,151RL(移動量検出手段;距離検出手段)で検出された各ラム移動量の差(S66’)を用いている。したがって、この変形例でも、図7に示す傾き算出プログラム23dを省略して制御の簡素化を図ることができる。 (Modification 1-3)
FIG. 13 is a flowchart showing a modification of FIG. In the soft material press processing subroutine (S6) shown in FIG. 13, as an index for determining whether or not the ram movement amount (drive distance) of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is within a uniform range, FIG. Instead of the inclination of the press plates 140F and 140B (pressing surface 141) calculated in S66 (that is, the inclination of the processed plate material W1), the linear encoders 151LH, 151RH, 151LL, and 151RL (movement amount detection means; distance detection means) are detected. Further, the difference (S66 ′) between the ram movement amounts is used. Therefore, also in this modified example, the inclination calculation program 23d shown in FIG. 7 can be omitted to simplify the control.
図13は図10の変形例を示すフローチャートである。図13に示す軟質材用プレス処理サブルーチン(S6)でも、押圧シリンダ150LH,150RH,150LL,150RLのラム移動量(駆動距離)が均一範囲内にあるか否かを判定する指標として、図10のS66で演算する押圧盤140F,140B(押圧面141)の傾き(すなわち被処理板材W1の傾き)に代わり、リニアエンコーダ151LH,151RH,151LL,151RL(移動量検出手段;距離検出手段)で検出された各ラム移動量の差(S66’)を用いている。したがって、この変形例でも、図7に示す傾き算出プログラム23dを省略して制御の簡素化を図ることができる。 (Modification 1-3)
FIG. 13 is a flowchart showing a modification of FIG. In the soft material press processing subroutine (S6) shown in FIG. 13, as an index for determining whether or not the ram movement amount (drive distance) of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is within a uniform range, FIG. Instead of the inclination of the
具体的には、図13のS67’にて各ラム移動量の差の大小を判定する場合、判定に用いるラム移動量の差(最大許容幅;例えば20mm)はラム移動量の設定範囲S±ΔS(例えば、1770±20mm)の幅(最大許容幅;例えば40mm=±20mm)よりも小さく(例えば1/2)設定されている。図5において、下方列の押圧シリンダ150LL,150RLのラム移動量(1750mm)と右上押圧シリンダ150RHのラム移動量(1775mm)との幅(25mm)は最大許容幅(20mm)を超えている(S67’でNO)。そこで、下方列の押圧シリンダ150LL,150RLをさらに押圧する必要があると決定する(S68’)。
Specifically, when determining the difference between the ram movement amounts in S67 ′ of FIG. 13, the ram movement amount difference (maximum allowable width; eg, 20 mm) used for the determination is the ram movement amount setting range S ±. It is set to be smaller (for example, 1/2) than the width (maximum allowable width; for example, 40 mm = ± 20 mm) of ΔS (for example, 1770 ± 20 mm). In FIG. 5, the width (25 mm) between the ram movement amount (1750 mm) of the lower row pressing cylinders 150LL and 150RL and the ram movement amount (1775 mm) of the upper right pressing cylinder 150RH exceeds the maximum allowable width (20 mm) (S67). 'No'). Therefore, it is determined that it is necessary to further press the pressing cylinders 150LL and 150RL in the lower row (S68 ').
(実施例2)
図14はプレス制御システムの配置関係の他の例を示す正面図、図15はその油圧回路図、図16はその電気的構成を示すブロック図である。図14の配置図に示すホットプレス部100(加熱加圧部;プレス構造)では、下方列の押圧シリンダ150LL,150RL(油圧シリンダ;流体圧シリンダ)は、押圧盤140F,140Bの押圧面141に対する押圧位置が不変とされた固定式押圧シリンダを構成している。一方、上方列の押圧シリンダ150LH,150RH(油圧シリンダ;流体圧シリンダ)は、押圧面141に対する押圧位置が上下方向へ変更可能な移動式押圧シリンダを構成している。そして、上方列の押圧シリンダ150LH,150RHの押圧位置移動調節機構として、昇降シリンダ170LH,170RH(油圧シリンダ;流体圧シリンダ)が設けられている。また、昇降シリンダ170LH,170RHは、押圧シリンダ150LH,150RHの上昇・下降位置を検出する昇降シリンダ用光電センサ171LH,171RH(移動検出手段)を備えている。 (Example 2)
FIG. 14 is a front view showing another example of the arrangement relationship of the press control system, FIG. 15 is a hydraulic circuit diagram thereof, and FIG. 16 is a block diagram showing its electrical configuration. In the hot press section 100 (heating and pressing section; press structure) shown in the layout diagram of FIG. 14, the lower row pressing cylinders 150LL and 150RL (hydraulic cylinders; fluid pressure cylinders) correspond to thepressing surfaces 141 of the pressing plates 140F and 140B. It constitutes a fixed pressing cylinder whose pressing position is unchanged. On the other hand, the upper rows of pressing cylinders 150LH and 150RH (hydraulic cylinders; fluid pressure cylinders) constitute a movable pressing cylinder in which the pressing position with respect to the pressing surface 141 can be changed in the vertical direction. In addition, lift cylinders 170LH and 170RH (hydraulic cylinders; fluid pressure cylinders) are provided as pressing position movement adjusting mechanisms for the upper-row pressing cylinders 150LH and 150RH. Further, the elevating cylinders 170LH and 170RH are provided with elevating cylinder photoelectric sensors 171LH and 171RH (movement detecting means) for detecting the ascending / descending positions of the pressing cylinders 150LH and 150RH.
図14はプレス制御システムの配置関係の他の例を示す正面図、図15はその油圧回路図、図16はその電気的構成を示すブロック図である。図14の配置図に示すホットプレス部100(加熱加圧部;プレス構造)では、下方列の押圧シリンダ150LL,150RL(油圧シリンダ;流体圧シリンダ)は、押圧盤140F,140Bの押圧面141に対する押圧位置が不変とされた固定式押圧シリンダを構成している。一方、上方列の押圧シリンダ150LH,150RH(油圧シリンダ;流体圧シリンダ)は、押圧面141に対する押圧位置が上下方向へ変更可能な移動式押圧シリンダを構成している。そして、上方列の押圧シリンダ150LH,150RHの押圧位置移動調節機構として、昇降シリンダ170LH,170RH(油圧シリンダ;流体圧シリンダ)が設けられている。また、昇降シリンダ170LH,170RHは、押圧シリンダ150LH,150RHの上昇・下降位置を検出する昇降シリンダ用光電センサ171LH,171RH(移動検出手段)を備えている。 (Example 2)
FIG. 14 is a front view showing another example of the arrangement relationship of the press control system, FIG. 15 is a hydraulic circuit diagram thereof, and FIG. 16 is a block diagram showing its electrical configuration. In the hot press section 100 (heating and pressing section; press structure) shown in the layout diagram of FIG. 14, the lower row pressing cylinders 150LL and 150RL (hydraulic cylinders; fluid pressure cylinders) correspond to the
図15の油圧回路図に示すように、電動モータ108で駆動される可変容量型の昇降シリンダ用油圧ポンプ172と各昇降シリンダ170LH,170RHとの間には、4ポート3位置切換型の電磁切換弁173が配置されている。電磁切換弁173は、中立のa位置からb位置に切り換えられたとき油圧ポンプ172と各昇降シリンダ170LH,170RHとを押圧シリンダ150LH,150RHの上昇方向に接続するとともに、c位置に切り換えられたとき同じく下降方向に接続する。
As shown in the hydraulic circuit diagram of FIG. 15, there is a four-port, three-position switching type electromagnetic switching between a variable displacement type lifting cylinder hydraulic pump 172 driven by the electric motor 108 and each lifting cylinder 170LH, 170RH. A valve 173 is arranged. When the electromagnetic switching valve 173 is switched from the neutral a position to the b position, the hydraulic pump 172 and the lifting cylinders 170LH and 170RH are connected in the ascending direction of the pressing cylinders 150LH and 150RH, and are switched to the c position. Similarly, connect in the downward direction.
図16のブロック図に示すように、大きさ選択スイッチ10の入力に伴って、押圧シリンダ150LH,150RHを上昇・下降するための制御出力信号が、入出力インターフェース24を介して制御基板20(シリンダ制御部)から各昇降シリンダ170LH,170RHへ出力されている。一方、昇降シリンダ170LH,170RHによる押圧シリンダ150LH,150RHの上昇・下降に伴い、光電センサ171LH,171RHの位置検出信号が入出力インターフェース24を介して制御基板20へ入力される。
As shown in the block diagram of FIG. 16, a control output signal for raising and lowering the pressing cylinders 150LH and 150RH in accordance with the input of the size selection switch 10 is sent to the control board 20 (cylinder) via the input / output interface 24. From the control unit) to the lifting cylinders 170LH and 170RH. On the other hand, the position detection signals of the photoelectric sensors 171LH and 171RH are input to the control board 20 via the input / output interface 24 as the pressing cylinders 150LH and 150RH are raised and lowered by the lifting cylinders 170LH and 170RH.
したがって、実施例1(図8)で説明したプレス準備処理のフローチャートは、本実施例では図17のように変更される。
Therefore, the flowchart of the press preparation process described in the first embodiment (FIG. 8) is changed as shown in FIG. 17 in the present embodiment.
図17に示すプレス準備処理では、まず、S1にて大きさ選択スイッチ10及び材質選択スイッチ11により被処理板材W1の大きさ(6尺材、8尺材、10尺材等)と材質(硬質材、軟質材等)を手操作入力する。その入力内容に基づき、S102において、被処理板材W1の大きさに応じて、電磁切換弁173をb位置又はc位置に切り換えて、昇降シリンダ170LH,170RHを上昇又は下降駆動させ、光電センサ171LH,171RHの検知により昇降駆動を停止する。次いで、S3にて選択した材質を確認し、材質が硬質材であれば(S3でYES)、S4にて硬質材用プレス処理を実行してプレス準備処理を終了し、材質が軟質材であれば(S3でNO)、S6にて軟質材用プレス処理を実行する。
In the press preparation processing shown in FIG. 17, first, the size (6 scale material, 8 scale material, 10 scale material, etc.) and material (hard) of the plate material W1 to be processed are selected by the size selection switch 10 and the material selection switch 11 in S1. Material, soft material, etc.). Based on the input content, in S102, the electromagnetic switching valve 173 is switched to the b position or the c position in accordance with the size of the processed plate material W1, and the elevating cylinders 170LH and 170RH are driven up or down, and the photoelectric sensors 171LH, The raising / lowering drive is stopped by detection of 171RH. Next, the material selected in S3 is confirmed. If the material is a hard material (YES in S3), the hard material press process is executed in S4 and the press preparation process is completed. If the material is a soft material, If (NO in S3), the soft material pressing process is executed in S6.
この実施例では、上方列の押圧シリンダ150LH,150RHを押圧位置変更可能な移動式押圧シリンダとした。そこで、被処理板材W1の大きさが変化したとき被処理板材W1の上辺の高さ位置が変動しても、上方列の押圧シリンダ150LH,150RHの押圧位置を調整することによって、被処理板材W1の傾きの発生を抑えることができる。
In this embodiment, the upper row pressing cylinders 150LH and 150RH are movable pressing cylinders capable of changing the pressing position. Therefore, even if the height position of the upper side of the processed plate material W1 changes when the size of the processed plate material W1 changes, the processed plate material W1 is adjusted by adjusting the pressing positions of the upper rows of pressing cylinders 150LH and 150RH. It is possible to suppress the occurrence of tilt.
(変形例2)
図18は図15の変形例を示す油圧回路図である。図18に示す押圧シリンダにも、変形例1-1(図11)と同様にサーボシリンダ150LH’,150RH’,150LL’,150RL’が用いられている。したがって、この変形例においても油圧回路の簡素化と精密な制御が可能となる。 (Modification 2)
FIG. 18 is a hydraulic circuit diagram showing a modification of FIG. As in the modified example 1-1 (FIG. 11), servo cylinders 150LH ′, 150RH ′, 150LL ′, 150RL ′ are also used in the pressing cylinder shown in FIG. Therefore, also in this modified example, the hydraulic circuit can be simplified and precisely controlled.
図18は図15の変形例を示す油圧回路図である。図18に示す押圧シリンダにも、変形例1-1(図11)と同様にサーボシリンダ150LH’,150RH’,150LL’,150RL’が用いられている。したがって、この変形例においても油圧回路の簡素化と精密な制御が可能となる。 (Modification 2)
FIG. 18 is a hydraulic circuit diagram showing a modification of FIG. As in the modified example 1-1 (FIG. 11), servo cylinders 150LH ′, 150RH ′, 150LL ′, 150RL ′ are also used in the pressing cylinder shown in FIG. Therefore, also in this modified example, the hydraulic circuit can be simplified and precisely controlled.
(実施例3)
図19はプレス制御システムの配置関係のさらに他の例を示す正面図、図20はその油圧回路図、図21はその電気的構成を示すブロック図である。図19の配置図に示すホットプレス部100(加熱加圧部;プレス構造)では、上方列の押圧シリンダ150LH,150RH(油圧シリンダ;流体圧シリンダ)に加えて、下方列の押圧シリンダ150LL,150RL(油圧シリンダ;流体圧シリンダ)も、押圧盤140F,140Bの押圧面141に対する押圧位置が上下方向へ変更可能な移動式押圧シリンダを構成している。これに伴って、下方列の押圧シリンダ150LL,150RLの押圧位置移動調節機構として、昇降シリンダ170LL,170RL(油圧シリンダ;流体圧シリンダ)が追加されている。また、昇降シリンダ170LL,170RLは、押圧シリンダ150LL,150RLの上昇・下降位置を検出する昇降シリンダ用光電センサ171LL,171RL(移動検出手段)を備えている。 (Example 3)
FIG. 19 is a front view showing still another example of the arrangement relationship of the press control system, FIG. 20 is a hydraulic circuit diagram thereof, and FIG. 21 is a block diagram showing its electrical configuration. In the hot press unit 100 (heating and pressing unit; press structure) shown in the layout diagram of FIG. 19, in addition to the upper row pressing cylinders 150LH and 150RH (hydraulic cylinder; fluid pressure cylinder), the lower row pressing cylinders 150LL and 150RL. (Hydraulic cylinder; fluid pressure cylinder) also constitutes a movable pressing cylinder in which the pressing position of the pressing plates 140F and 140B with respect to the pressing surface 141 can be changed in the vertical direction. Along with this, elevating cylinders 170LL and 170RL (hydraulic cylinders; fluid pressure cylinders) are added as pressing position movement adjusting mechanisms for the pressing cylinders 150LL and 150RL in the lower row. The elevating cylinders 170LL and 170RL include elevating cylinder photoelectric sensors 171LL and 171RL (movement detecting means) for detecting the ascending / descending positions of the pressing cylinders 150LL and 150RL.
図19はプレス制御システムの配置関係のさらに他の例を示す正面図、図20はその油圧回路図、図21はその電気的構成を示すブロック図である。図19の配置図に示すホットプレス部100(加熱加圧部;プレス構造)では、上方列の押圧シリンダ150LH,150RH(油圧シリンダ;流体圧シリンダ)に加えて、下方列の押圧シリンダ150LL,150RL(油圧シリンダ;流体圧シリンダ)も、押圧盤140F,140Bの押圧面141に対する押圧位置が上下方向へ変更可能な移動式押圧シリンダを構成している。これに伴って、下方列の押圧シリンダ150LL,150RLの押圧位置移動調節機構として、昇降シリンダ170LL,170RL(油圧シリンダ;流体圧シリンダ)が追加されている。また、昇降シリンダ170LL,170RLは、押圧シリンダ150LL,150RLの上昇・下降位置を検出する昇降シリンダ用光電センサ171LL,171RL(移動検出手段)を備えている。 (Example 3)
FIG. 19 is a front view showing still another example of the arrangement relationship of the press control system, FIG. 20 is a hydraulic circuit diagram thereof, and FIG. 21 is a block diagram showing its electrical configuration. In the hot press unit 100 (heating and pressing unit; press structure) shown in the layout diagram of FIG. 19, in addition to the upper row pressing cylinders 150LH and 150RH (hydraulic cylinder; fluid pressure cylinder), the lower row pressing cylinders 150LL and 150RL. (Hydraulic cylinder; fluid pressure cylinder) also constitutes a movable pressing cylinder in which the pressing position of the
図20の油圧回路図に示すように、電磁切換弁173は、昇降シリンダ用油圧ポンプ172と各昇降シリンダ170LL,170RLとの間にも配置されている。よって、電磁切換弁173は、中立のa位置からb位置に切り換えられたとき油圧ポンプ172と各昇降シリンダ170LL,170RLとを押圧シリンダ150LL,150RLの上昇方向に接続するとともに、c位置に切り換えられたとき同じく下降方向に接続する。
As shown in the hydraulic circuit diagram of FIG. 20, the electromagnetic switching valve 173 is also disposed between the lift cylinder hydraulic pump 172 and the lift cylinders 170LL and 170RL. Therefore, when the electromagnetic switching valve 173 is switched from the neutral a position to the b position, the hydraulic pump 172 and the lifting cylinders 170LL and 170RL are connected in the ascending direction of the pressing cylinders 150LL and 150RL and are switched to the c position. Similarly, connect in the downward direction.
図21のブロック図に示すように、大きさ選択スイッチ10の入力に伴って、押圧シリンダ150LL,150RLを上昇・下降するための制御出力信号が、入出力インターフェース24を介して制御基板20(シリンダ制御部)から各昇降シリンダ170LL,170RLへ出力されている。一方、昇降シリンダ170LL,170RLによる押圧シリンダ150LL,150RLの上昇・下降に伴い、光電センサ171LL,171RLの位置検出信号が入出力インターフェース24を介して制御基板20へ入力される。
As shown in the block diagram of FIG. 21, a control output signal for raising and lowering the pressing cylinders 150LL and 150RL in accordance with the input of the size selection switch 10 is sent to the control board 20 (cylinder) via the input / output interface 24. From the control unit) to the lifting cylinders 170LL and 170RL. On the other hand, the position detection signals of the photoelectric sensors 171LL and 171RL are input to the control board 20 via the input / output interface 24 as the pressing cylinders 150LL and 150RL are raised and lowered by the lifting cylinders 170LL and 170RL.
(変形例3)
図22は図20の変形例を示す油圧回路図である。図22に示す押圧シリンダにも、変形例1-1(図11)と同様にサーボシリンダ150LH’,150RH’,150LL’,150RL’が用いられている。したがって、この変形例においても油圧回路の簡素化と精密な制御が可能となる。 (Modification 3)
FIG. 22 is a hydraulic circuit diagram showing a modification of FIG. As in the modified example 1-1 (FIG. 11), servo cylinders 150LH ′, 150RH ′, 150LL ′, 150RL ′ are also used in the pressing cylinder shown in FIG. Therefore, also in this modified example, the hydraulic circuit can be simplified and precisely controlled.
図22は図20の変形例を示す油圧回路図である。図22に示す押圧シリンダにも、変形例1-1(図11)と同様にサーボシリンダ150LH’,150RH’,150LL’,150RL’が用いられている。したがって、この変形例においても油圧回路の簡素化と精密な制御が可能となる。 (Modification 3)
FIG. 22 is a hydraulic circuit diagram showing a modification of FIG. As in the modified example 1-1 (FIG. 11), servo cylinders 150LH ′, 150RH ′, 150LL ′, 150RL ′ are also used in the pressing cylinder shown in FIG. Therefore, also in this modified example, the hydraulic circuit can be simplified and precisely controlled.
(実施例4)
図23はプレス制御システムの配置関係のさらに他の例を示す正面図、図24はその油圧回路図、図25はその電気的構成を示すブロック図である。図23の配置図に示すホットプレス部100(加熱加圧部;プレス構造)では押圧シリンダは2本で構成され、その2本の押圧シリンダ150L,150R(油圧シリンダ;流体圧シリンダ)は、搬送基準面Bからの離間距離が開閉シリンダ180(油圧シリンダ;流体圧シリンダ)とほぼ等しくする形で、開閉シリンダ180を挟んで左右に配置されている。 Example 4
FIG. 23 is a front view showing still another example of the arrangement relationship of the press control system, FIG. 24 is a hydraulic circuit diagram thereof, and FIG. 25 is a block diagram showing its electrical configuration. In the hot press section 100 (heat pressurizing section; press structure) shown in the layout diagram of FIG. 23, there are two pressing cylinders, and the two pressing cylinders 150L and 150R (hydraulic cylinders; fluid pressure cylinders) are transported. The separation distance from the reference plane B is substantially the same as that of the opening / closing cylinder 180 (hydraulic cylinder; fluid pressure cylinder), and they are arranged on the left and right sides of the opening / closing cylinder 180.
図23はプレス制御システムの配置関係のさらに他の例を示す正面図、図24はその油圧回路図、図25はその電気的構成を示すブロック図である。図23の配置図に示すホットプレス部100(加熱加圧部;プレス構造)では押圧シリンダは2本で構成され、その2本の押圧シリンダ150L,150R(油圧シリンダ;流体圧シリンダ)は、搬送基準面Bからの離間距離が開閉シリンダ180(油圧シリンダ;流体圧シリンダ)とほぼ等しくする形で、開閉シリンダ180を挟んで左右に配置されている。 Example 4
FIG. 23 is a front view showing still another example of the arrangement relationship of the press control system, FIG. 24 is a hydraulic circuit diagram thereof, and FIG. 25 is a block diagram showing its electrical configuration. In the hot press section 100 (heat pressurizing section; press structure) shown in the layout diagram of FIG. 23, there are two pressing cylinders, and the two
各押圧シリンダ150L,150Rは、被処理体Wの全体厚さの減少量をラム移動量(駆動距離)として検出する押圧シリンダ用リニアエンコーダ151L,151R(移動量検出手段;距離検出手段)と、押圧盤140F,140Bの押圧力を押圧シリンダ150L,150Rのシリンダ内圧(駆動圧力)として検出する押圧シリンダ用圧力センサ152L,152R(圧力検出手段)とを備えている。押圧シリンダ150L,150Rの押圧位置移動調節機構として、昇降シリンダ170L,170R(油圧シリンダ;流体圧シリンダ)が設けられている。また、昇降シリンダ170L,170Rは、押圧シリンダ150L,150Rの上昇・下降位置を検出する昇降シリンダ用光電センサ171L,171R(移動検出手段)を備えている。
Each of the pressing cylinders 150L and 150R includes pressing cylinder linear encoders 151L and 151R (movement amount detection means; distance detection means) that detect a reduction amount of the entire thickness of the workpiece W as a ram movement amount (drive distance); Pressure cylinder pressure sensors 152L and 152R (pressure detection means) for detecting the pressures of the pressure plates 140F and 140B as cylinder internal pressures (drive pressures) of the pressure cylinders 150L and 150R are provided. Elevating cylinders 170L and 170R (hydraulic cylinders; fluid pressure cylinders) are provided as a mechanism for adjusting the pressing position of the pressing cylinders 150L and 150R. The elevating cylinders 170L and 170R include elevating cylinder photoelectric sensors 171L and 171R (movement detecting means) for detecting the ascending / descending positions of the pressing cylinders 150L and 150R.
図24の油圧回路図に示すように、電動モータ108で駆動される可変容量型の押圧シリンダ用油圧ポンプ154と各押圧シリンダ150L,150Rとの間には、4ポート3位置切換型の電磁切換弁155L,155Rがそれぞれ配置されている。各電磁切換弁155L,155Rは、中立のa位置からb位置に切り換えられたとき油圧ポンプ154と押圧シリンダ150L,150Rとを押圧盤140F,140Bの閉鎖方向に接続するとともに、c位置に切り換えられたとき同じく押圧盤140F,140Bの開放方向に接続する。なお、押圧シリンダ150L,150Rを高精度で駆動制御するために、これらの電磁切換弁155L,155Rに対して、例えばデューティ比に基づくPWM制御(デューティ制御とも通称される)を適用することが望ましい。
As shown in the hydraulic circuit diagram of FIG. 24, a four-port, three-position switching electromagnetic switch is provided between the variable displacement type press cylinder hydraulic pump 154 driven by the electric motor 108 and the press cylinders 150L and 150R. Valves 155L and 155R are respectively disposed. When the electromagnetic switching valves 155L and 155R are switched from the neutral a position to the b position, the hydraulic pump 154 and the pressing cylinders 150L and 150R are connected in the closing direction of the pressing plates 140F and 140B and are switched to the c position. In the same way, the press plates 140F and 140B are connected in the opening direction. In order to drive and control the press cylinders 150L and 150R with high accuracy, it is desirable to apply, for example, PWM control based on a duty ratio (also commonly referred to as duty control) to these electromagnetic switching valves 155L and 155R. .
電動モータ108で駆動される可変容量型の昇降シリンダ用油圧ポンプ172と各昇降シリンダ170L,170Rとの間には、4ポート3位置切換型の電磁切換弁173が配置されている。電磁切換弁173は、中立のa位置からb位置に切り換えられたとき油圧ポンプ172と各昇降シリンダ170L,170Rとを押圧シリンダ150L,150Rの上昇方向に接続するとともに、c位置に切り換えられたとき同じく下降方向に接続する。
Between the variable displacement type lift cylinder hydraulic pump 172 driven by the electric motor 108 and the lift cylinders 170L, 170R, a four-port three-position switching type electromagnetic switching valve 173 is disposed. When the electromagnetic switching valve 173 is switched from the neutral a position to the b position, the hydraulic pump 172 and the lifting cylinders 170L and 170R are connected in the ascending direction of the pressing cylinders 150L and 150R, and are switched to the c position. Similarly, connect in the downward direction.
このように、押圧シリンダ150L,150Rを押圧盤140F,140Bの押圧面141に対する押圧位置が上下方向へ変更可能な移動式(昇降式)の2本で構成することにより、ホットプレス部100の構成を一層簡素化することができる。なお、図23及び図24の変更点に基づいて図25のブロック図が構成されているが、実施例1~3に示したブロック図(図7、図16及び図21)との相違はこれまでに説明したところから一見して明らかであるから、図25の説明を割愛する。
As described above, the pressing cylinders 150L and 150R are configured with two movable (elevating and lowering) types in which the pressing positions of the pressing plates 140F and 140B with respect to the pressing surface 141 can be changed in the vertical direction, thereby configuring the hot press unit 100. Can be further simplified. The block diagram of FIG. 25 is configured based on the changes in FIGS. 23 and 24. The difference from the block diagrams (FIGS. 7, 16, and 21) shown in the first to third embodiments is the same as the block diagram of FIGS. Since it is apparent at first glance from the above description, the description of FIG. 25 is omitted.
(変形例4)
図26は図24の変形例を示す油圧回路図である。図26に示す押圧シリンダにも、変形例1-1(図11)と同様にサーボシリンダ150L’,150R’が用いられている。したがって、この変形例においても油圧回路の簡素化と精密な制御が可能となる。 (Modification 4)
FIG. 26 is a hydraulic circuit diagram showing a modification of FIG. As in the modified example 1-1 (FIG. 11),servo cylinders 150L ′ and 150R ′ are also used in the pressing cylinder shown in FIG. Therefore, also in this modified example, the hydraulic circuit can be simplified and precisely controlled.
図26は図24の変形例を示す油圧回路図である。図26に示す押圧シリンダにも、変形例1-1(図11)と同様にサーボシリンダ150L’,150R’が用いられている。したがって、この変形例においても油圧回路の簡素化と精密な制御が可能となる。 (Modification 4)
FIG. 26 is a hydraulic circuit diagram showing a modification of FIG. As in the modified example 1-1 (FIG. 11),
(実施例5)
図27はプレス制御システムのさらに他の例を示す油圧回路図、図28はその電気的構成を示すブロック図である。この実施例に示すプレス制御システムでは、複数(例えば4本)の押圧シリンダの駆動を個別(個々単独)にではなく一括(共通)して制御する方式を採用しているが、その配置関係は実施例1(図5)と同様である。 (Example 5)
FIG. 27 is a hydraulic circuit diagram showing still another example of the press control system, and FIG. 28 is a block diagram showing its electrical configuration. In the press control system shown in this embodiment, a method of controlling the driving of a plurality of (for example, four) pressing cylinders collectively (individually) instead of individually (individually individually) is adopted. This is the same as Example 1 (FIG. 5).
図27はプレス制御システムのさらに他の例を示す油圧回路図、図28はその電気的構成を示すブロック図である。この実施例に示すプレス制御システムでは、複数(例えば4本)の押圧シリンダの駆動を個別(個々単独)にではなく一括(共通)して制御する方式を採用しているが、その配置関係は実施例1(図5)と同様である。 (Example 5)
FIG. 27 is a hydraulic circuit diagram showing still another example of the press control system, and FIG. 28 is a block diagram showing its electrical configuration. In the press control system shown in this embodiment, a method of controlling the driving of a plurality of (for example, four) pressing cylinders collectively (individually) instead of individually (individually individually) is adopted. This is the same as Example 1 (FIG. 5).
ただし、図27の油圧回路図では、実施例1(図6)と異なり、電動モータ108で駆動される可変容量型の押圧シリンダ用油圧ポンプ154と各押圧シリンダ150LH,150RH,150LL,150RL(油圧シリンダ;流体圧シリンダ)との間には、4ポート3位置切換型の単一の電磁切換弁155が配置されている。電磁切換弁155は、中立のa位置からb位置に切り換えられたとき油圧ポンプ154と押圧シリンダ150LH,150RH,150LL,150RLとを同時に押圧盤140F,140Bの閉鎖方向に接続するとともに、c位置に切り換えられたとき同じく押圧盤140F,140Bの開放方向に接続する。また、図28のブロック図では、実施例1(図7)と異なり、制御基板20(シリンダ制御部)のROM23において傾き算出プログラムが省略されている。
However, in the hydraulic circuit diagram of FIG. 27, unlike the first embodiment (FIG. 6), the variable displacement type press cylinder hydraulic pump 154 driven by the electric motor 108 and the press cylinders 150LH, 150RH, 150LL, 150RL (hydraulic pressure) A single electromagnetic switching valve 155 of a four-port three-position switching type is disposed between the cylinder and the fluid pressure cylinder). The electromagnetic switching valve 155 connects the hydraulic pump 154 and the pressing cylinders 150LH, 150RH, 150LL, and 150RL simultaneously in the closing direction of the pressing plates 140F and 140B when switched from the neutral a position to the b position, and is also in the c position. When switched, the press plates 140F and 140B are connected in the opening direction. In the block diagram of FIG. 28, unlike the first embodiment (FIG. 7), the inclination calculation program is omitted in the ROM 23 of the control board 20 (cylinder control unit).
したがってこの実施例では、プレス準備処理(図8参照)に続いて実行される硬質材用プレス処理サブルーチン(S4)は図29のように表され、軟質材用プレス処理サブルーチン(S6)は図30のように表される。
Therefore, in this embodiment, the hard material press processing subroutine (S4) executed after the press preparation processing (see FIG. 8) is expressed as shown in FIG. 29, and the soft material press processing subroutine (S6) is shown in FIG. It is expressed as
図29は図9に代わる硬質材用プレス処理サブルーチン(S4)を示す。被処理板材W1が硬質材の場合、押圧シリンダ150LH,150RH,150LL,150RLによる押圧盤140F,140Bの押圧に伴って、各シリンダ内圧を目標範囲P±ΔP内に到達させる。そのときに検出された各ラム移動量に、所定の設定範囲S±ΔSの下限値であるS-ΔSを下回るものがある場合には、被処理板材W1(すなわち押圧盤140F,140B(押圧面141))に傾きが発生している可能性が高い。そこで、その傾きを是正(緩和)するために、各押圧シリンダ150LH,150RH,150LL,150RLのシリンダ内圧を目標範囲P±ΔPよりも高く設定された許容範囲(例えばP+2ΔP)内で増加して追加押圧駆動する。
FIG. 29 shows a hard material press processing subroutine (S4) in place of FIG. When the processed plate material W1 is a hard material, each cylinder internal pressure is allowed to reach the target range P ± ΔP in accordance with the pressing of the pressing plates 140F and 140B by the pressing cylinders 150LH, 150RH, 150LL, and 150RL. If any of the ram movement amounts detected at that time falls below S−ΔS, which is the lower limit value of the predetermined set range S ± ΔS, the processed plate material W1 (that is, the pressing plates 140F and 140B (the pressing surface) 141)) is likely to be tilted. Therefore, in order to correct (relax) the inclination, the cylinder internal pressure of each of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is increased and added within an allowable range (for example, P + 2ΔP) set higher than the target range P ± ΔP. Press drive.
具体的には、被処理板材W1の大きさに応じて微調整されたラム移動量の設定値Sとシリンダ内圧の目標値P(図8のS2参照)とに基づき、S40にてラム移動量の設定範囲S±ΔS(例えば、1770±15mm)とシリンダ内圧の目標範囲P±ΔP(例えば、7.0±0.2MPa)とを決定する。プレス開始スイッチ(図示せず)がONされると(S41でYES)、S42にて電磁切換弁183をb位置に切り換えて、開閉シリンダ180により押圧盤140F,140Bを閉鎖駆動させ、圧力スイッチ181の検知により駆動を停止する。その後S43にて、押圧シリンダ150LH,150RH,150LL,150RLにより押圧盤140F,140Bを一斉に押圧駆動する。S144にて各押圧シリンダ150LH,150RH,150LL,150RLの内圧が目標範囲P±ΔP(ここでは、7.0±0.2MPa)内に到達したかを、圧力センサ152LH,152RH,152LL,152RLで確認する。
Specifically, based on the set value S of the ram movement amount finely adjusted according to the size of the plate material W1 and the target value P of the cylinder internal pressure (see S2 in FIG. 8), the ram movement amount in S40. Set range S ± ΔS (for example, 1770 ± 15 mm) and a target range P ± ΔP (for example, 7.0 ± 0.2 MPa) of the cylinder internal pressure are determined. When a press start switch (not shown) is turned on (YES in S41), the electromagnetic switching valve 183 is switched to the b position in S42, and the pressing plates 140F and 140B are driven to close by the opening / closing cylinder 180, and the pressure switch 181 The drive is stopped by detecting this. After that, in S43, the pressing plates 140F and 140B are simultaneously pressed and driven by the pressing cylinders 150LH, 150RH, 150LL, and 150RL. In S144, the pressure sensors 152LH, 152RH, 152LL, and 152RL indicate whether the internal pressure of each of the pressing cylinders 150LH, 150RH, 150LL, and 150RL has reached the target range P ± ΔP (here, 7.0 ± 0.2 MPa). Check.
図5のように各シリンダ内圧が目標範囲P±ΔP内に到達していれば(S144でYES)、S145にて各ラム移動量が設定範囲S±ΔS(ここでは、1770±15mm)内に到達したかを、リニアエンコーダ151LH,151RH,151LL,151RLで確認する。図5のように下方列の押圧シリンダ150LL,150RLのラム移動量が設定範囲S±ΔS外の場合には(S145でNO)、次にS146にていずれかのラム移動量が、設定範囲S±ΔSの下限値であるS-ΔS(ここでは、1755mm)を下回っているかを確認する。図5において、下方列の押圧シリンダ150LL,150RLのラム移動量が下限値S-ΔS未満の場合には(S146でYES)、被処理板材W1(すなわち押圧盤140F,140B(押圧面141))に傾きが発生している可能性が高く、かつ被処理板材W1には押圧処理の余裕分があることになる。そこでその傾きを是正(緩和)すべく、S147にてシリンダ内圧の目標範囲をP+2ΔP(ここでは、7.4MPa)に変更(増圧)して、S43に戻り一斉押圧駆動を継続する。
If each cylinder internal pressure has reached the target range P ± ΔP as shown in FIG. 5 (YES in S144), each ram movement amount is within the set range S ± ΔS (here, 1770 ± 15 mm) in S145. It is confirmed by the linear encoders 151LH, 151RH, 151LL, 151RL whether or not it has been reached. As shown in FIG. 5, when the ram movement amount of the pressing cylinders 150LL and 150RL in the lower row is out of the setting range S ± ΔS (NO in S145), one of the ram movement amounts is then set in the setting range S in S146. It is confirmed whether it is below S−ΔS (here, 1755 mm), which is the lower limit of ± ΔS. In FIG. 5, when the amount of ram movement of the lower row pressing cylinders 150LL and 150RL is less than the lower limit value S−ΔS (YES in S146), the processed plate material W1 (that is, the pressing plates 140F and 140B (the pressing surface 141)). Is likely to be inclined, and the processed plate material W1 has a margin for the pressing process. Therefore, in order to correct (relax) the inclination, the target range of the cylinder internal pressure is changed (increased) to P + 2ΔP (here, 7.4 MPa) in S147, and the process returns to S43 and the simultaneous pressing drive is continued.
このようにして、押圧駆動続行により各ラム移動量が設定範囲S±ΔS内となったとき、あるいは当初から設定範囲内であったとき(S145でYES)、傾きが是正(緩和)された、あるいは傾きがなかったと判断して、S52にて全押圧シリンダ150LH,150RH,150LL,150RLの押圧駆動を停止する。さらにS53にて、所定時間経過後(例えば10秒後)に電磁切換弁155,183をc位置に切り換えて、全押圧シリンダ150LH,150RH,150LL,150RL及び開閉シリンダ180により押圧盤140F,140Bを開放駆動させ、圧力スイッチ181の検知により駆動を停止して硬質材用プレス処理を終了する。なお、いずれかのラム移動量が上限値S+ΔSを上回っている場合には(S146でNO)、不良品となる可能性が大きいので、S148にて警報を発して処理を中断する。
In this way, when each ram movement amount is within the set range S ± ΔS due to continued pressing drive, or when it is within the set range from the beginning (YES in S145), the inclination is corrected (relaxed). Alternatively, it is determined that there is no inclination, and the pressing drive of all the pressing cylinders 150LH, 150RH, 150LL, 150RL is stopped in S52. Further, in S53, after a predetermined time elapses (for example, after 10 seconds), the electromagnetic switching valves 155 and 183 are switched to the c position, and the pressing plates 140F and 140B are moved by the all pressing cylinders 150LH, 150RH, 150LL, 150RL and the opening / closing cylinder 180. The drive is opened, the drive is stopped by the detection of the pressure switch 181, and the hard material pressing process is terminated. If any of the ram movement amounts exceeds the upper limit value S + ΔS (NO in S146), there is a high possibility of a defective product, so an alarm is issued in S148 and the process is interrupted.
欅、ラワンのように硬く弾力性や反発力が相対的に大きい硬質材では、反発による戻り(スプリングバック)現象で押圧盤140F,140Bが傾きやすい。そこで、まず各シリンダ内圧を目標範囲P±ΔP内に到達させてそのときのラム移動量から、押圧盤140F,140Bの傾きの有無と押圧駆動続行(増圧)の可否とを判定(推測)する。「傾き有」かつ「増圧可」と判定されれば、さらにシリンダ内圧を許容範囲P+2ΔP内で高めて傾きを是正(緩和)する。このようにして、押圧シリンダ150LH,150RH,150LL,150RLの駆動を圧力重視で一括して制御する。特に硬質材における戻り現象によって押圧盤140F,140Bが傾いても、被処理体W(被処理板材W1+熱板130)の全体厚さを所定の許容寸法に仕上げる過程において押圧盤140F,140Bの傾きを是正(緩和)できるので、不良品の発生を抑制し製品歩留まりを向上させることができる。
欅 In hard materials such as Lauan and hard materials with relatively large elasticity and repulsion, the press plates 140F and 140B tend to tilt due to the rebound (spring back) phenomenon. Therefore, first, the internal pressure of each cylinder is made to reach the target range P ± ΔP, and the presence / absence of the inclination of the press plates 140F and 140B and the propriety of the press drive (pressure increase) are determined (estimated) from the ram movement amount at that time. To do. If it is determined that “inclination exists” and “pressure increase is possible”, the cylinder internal pressure is further increased within the allowable range P + 2ΔP to correct (relax) the inclination. In this way, the driving of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is collectively controlled with emphasis on pressure. In particular, even if the pressing plates 140F and 140B are inclined due to the return phenomenon in the hard material, the inclination of the pressing plates 140F and 140B is performed in the process of finishing the entire thickness of the object to be processed W (processed plate material W1 + hot plate 130) to a predetermined allowable dimension. Therefore, the occurrence of defective products can be suppressed and the product yield can be improved.
図30は図10に代わる軟質材用プレス処理サブルーチン(S6)を示す。被処理板材W1が軟質材の場合、押圧シリンダ150LH,150RH,150LL,150RLによる押圧盤140F,140Bの押圧に伴って、各ラム移動量を所定の設定範囲S±ΔSの下限値S-ΔSに到達させる。そのとき、各シリンダ内圧が所定の目標範囲P±ΔPの下限値であるP-ΔPを下回るものがある場合には、被処理板材W1(すなわち押圧盤140F,140B(押圧面141))に傾きが発生している可能性がある。そこで、その傾きを是正(緩和)するために、ラム移動量が設定範囲S±ΔS内において追加押圧駆動する。
FIG. 30 shows a soft material press processing subroutine (S6) instead of FIG. When the processed plate material W1 is a soft material, each ram movement amount is set to the lower limit value S−ΔS of the predetermined setting range S ± ΔS in accordance with the pressing of the pressing plates 140F, 140B by the pressing cylinders 150LH, 150RH, 150LL, 150RL. To reach. At that time, if there is one in which each cylinder internal pressure falls below P−ΔP, which is the lower limit value of the predetermined target range P ± ΔP, the processed plate material W1 (ie, the press plates 140F and 140B (pressing surface 141)) is inclined. May have occurred. Therefore, in order to correct (relax) the inclination, the ram movement amount is additionally pressed within the set range S ± ΔS.
具体的には、被処理板材W1の大きさに応じて微調整されたラム移動量の設定値Sとシリンダ内圧の目標値P(図8のS2参照)とに基づき、S60にてラム移動量の設定範囲S±ΔS(例えば、1770±20mm)とシリンダ内圧の目標範囲P±ΔP(例えば、7.5±0.2MPa)とを決定する。プレス開始スイッチ(図示せず)がONされると(S61でYES)、S62にて電磁切換弁183をb位置に切り換えて、開閉シリンダ180により押圧盤140F,140Bを閉鎖駆動させ、圧力スイッチ181の検知により駆動を停止する。その後S63にて、押圧シリンダ150LH,150RH,150LL,150RLにより押圧盤140F,140Bを一斉に押圧駆動する。S164にて各ラム153LH,153RH,153LL,153RLの移動量が設定範囲S±ΔSの下限値S-ΔS(ここでは、1750mm)に到達したかを、リニアエンコーダ151LH,151RH,151LL,151RLで確認する。
Specifically, based on the set value S of the ram movement amount finely adjusted according to the size of the plate material W1 and the target value P of the cylinder internal pressure (see S2 in FIG. 8), the ram movement amount in S60. Set range S ± ΔS (for example, 1770 ± 20 mm) and a target range P ± ΔP (for example, 7.5 ± 0.2 MPa) of the cylinder internal pressure are determined. When a press start switch (not shown) is turned ON (YES in S61), the electromagnetic switching valve 183 is switched to the b position in S62, and the pressure discs 140F and 140B are driven to close by the open / close cylinder 180, and the pressure switch 181 The drive is stopped by detecting this. After that, in S63, the pressing plates 140F and 140B are simultaneously pressed and driven by the pressing cylinders 150LH, 150RH, 150LL, and 150RL. In S164, the linear encoders 151LH, 151RH, 151LL, and 151RL confirm whether the movement amount of each of the rams 153LH, 153RH, 153LL, and 153RL has reached the lower limit value S−ΔS (here, 1750 mm) of the setting range S ± ΔS. To do.
図5のように各ラム移動量が設定範囲S±ΔSの下限値S-ΔSに到達していれば(S164でYES)、S165にて各ラム移動量が設定範囲S±ΔS(ここでは、1770±20mm)内にあるかを再確認する。図5のように各ラム移動量が設定範囲S±ΔS内にあれば(S165でYES)、S166にて各シリンダ内圧が目標範囲P±ΔP(ここでは、7.5±0.2MPa)内に到達したかを、圧力センサ152LH,152RH,152LL,152RLで確認する。図5のようにすべてのシリンダ内圧が目標範囲P±ΔP外の場合には(S166でNO)、次にS167にていずれかのシリンダ内圧が、目標範囲P±ΔPの下限値P-ΔP(ここでは、7.3MPa)を下回っているかを確認する。図5において、下方列の押圧シリンダ150LL,150RLのラム移動量が下限値S-ΔSと等しく(S164でYES)、すべてのシリンダ内圧が下限値S-ΔS未満の場合には(S167でYES)、被処理板材W1(すなわち押圧盤140F,140B(押圧面141))に傾きが発生している可能性が高く、かつ被処理板材W1には押圧処理の余裕分があることになる。そこでその傾きを是正(緩和)すべく、S63に戻り一斉押圧駆動を継続する。
If each ram movement amount has reached the lower limit value S-ΔS of the setting range S ± ΔS as shown in FIG. 5 (YES in S164), each ram movement amount is set in the setting range S ± ΔS (here, 1770 ± 20 mm) is reconfirmed. If each ram movement amount is within the set range S ± ΔS as shown in FIG. 5 (YES in S165), each cylinder internal pressure is within the target range P ± ΔP (here, 7.5 ± 0.2 MPa) in S166. Is confirmed by the pressure sensors 152LH, 152RH, 152LL, and 152RL. If all the cylinder internal pressures are outside the target range P ± ΔP as shown in FIG. 5 (NO in S166), then, in S167, any one of the cylinder internal pressures becomes the lower limit value P−ΔP of the target range P ± ΔP ( Here, it is confirmed whether it is less than 7.3 MPa). In FIG. 5, when the amount of ram movement of the pressing cylinders 150LL and 150RL in the lower row is equal to the lower limit value S-ΔS (YES in S164) and all the cylinder internal pressures are less than the lower limit value S-ΔS (YES in S167). The plate material W1 to be processed (that is, the pressing plates 140F and 140B (pressing surface 141)) is highly likely to be inclined, and the plate material W1 to be processed has a margin for the pressing process. Therefore, in order to correct (relax) the inclination, the process returns to S63 and the simultaneous pressing drive is continued.
このように、各ラム移動量が設定範囲S±ΔS内において(S165でYES)、押圧駆動続行により各シリンダ内圧が目標範囲P±ΔP内となったとき(S166でYES)、傾きが是正(緩和)されたと判断して、S72にて全押圧シリンダ150LH,150RH,150LL,150RLの押圧駆動を停止する。さらにS73にて、所定時間経過後(例えば10秒後)に電磁切換弁155,183をc位置に切り換えて、全押圧シリンダ150LH,150RH,150LL,150RL及び開閉シリンダ180により押圧盤140F,140Bを開放駆動させ、圧力スイッチ181の検知により駆動を停止して軟質材用プレス処理を終了する。なお、いずれかのラム移動量が上限値S+ΔSを上回っている場合(S165でNO)、及びいずれかのシリンダ内圧が上限値P+ΔPを上回っている場合には(S167でNO)、不良品となる可能性が大きいので、S168にて警報を発して処理を中断する。
Thus, when each ram movement amount is within the set range S ± ΔS (YES in S165), when each cylinder internal pressure is within the target range P ± ΔP (YES in S166), the inclination is corrected (YES in S166). In step S72, the pressing operation of all the pressing cylinders 150LH, 150RH, 150LL, and 150RL is stopped. Further, in S73, after a predetermined time has elapsed (for example, after 10 seconds), the electromagnetic switching valves 155 and 183 are switched to the c position, and the pressing plates 140F and 140B are moved by all the pressing cylinders 150LH, 150RH, 150LL, 150RL and the opening / closing cylinder 180. The drive is opened, the drive is stopped by the detection of the pressure switch 181, and the soft material pressing process is terminated. If any of the ram movement amounts exceeds the upper limit value S + ΔS (NO in S165), and if any of the cylinder internal pressures exceeds the upper limit value P + ΔP (NO in S167), it becomes a defective product. Since the possibility is great, an alarm is issued in S168 and the process is interrupted.
杉、桐のように軟らかく弾力性や反発力が相対的に小さい軟質材では、押圧によって容易に厚さが減少しやすく、シリンダ内圧が目標範囲P±ΔPを少しでも超えると加熱圧着後の厚さが部分的に(特にシリンダ押圧位置で)規定より薄くなりやすい。そこで、まず各ラム移動量を設定範囲S±ΔSの下限値S-ΔSに到達させ、そのときの各シリンダ内圧から、押圧盤140F,140Bの傾きの有無と押圧駆動続行の可否とを判定(推測)する。「傾き有」かつ「続行可」と判定されれば、さらにラム移動量が設定範囲S±ΔS内で押圧駆動を続行して傾きを是正(緩和)する。このようにして、押圧シリンダ150LH,150RH,150LL,150RLの駆動を距離重視で一括して制御する。特に軟質材に対して押圧過剰の発生を防止(監視)しつつ、被処理体W(被処理板材W1+熱板130)の全体厚さを所定の許容寸法に仕上げる過程において押圧盤140F,140Bの傾きを是正(緩和)できるので、不良品の発生を抑制し製品歩留まりを向上させることができる。
For soft materials such as cedar and paulownia, which are soft and have relatively little elasticity and repulsive force, the thickness is easily reduced by pressing, and if the cylinder pressure exceeds the target range P ± ΔP, the thickness after thermocompression bonding Tends to be thinner than specified (particularly at the cylinder pressing position). Therefore, first, each ram movement amount is made to reach the lower limit value S−ΔS of the setting range S ± ΔS, and from each cylinder internal pressure at that time, it is determined whether or not the pressing disks 140F and 140B are inclined and whether or not the pressing drive can be continued ( Infer. If it is determined that “there is inclination” and “continue is possible”, the ram movement amount is further within the set range S ± ΔS, and the pressing drive is continued to correct (relax) the inclination. In this manner, the driving of the pressing cylinders 150LH, 150RH, 150LL, and 150RL is collectively controlled with an emphasis on distance. In particular, in the process of finishing the entire thickness of the object to be processed W (processed plate material W1 + hot plate 130) to a predetermined allowable size while preventing (monitoring) the occurrence of excessive pressing on the soft material, the press plates 140F and 140B Since the inclination can be corrected (relaxed), the generation of defective products can be suppressed and the product yield can be improved.
以上のように、この実施例では、個々の押圧シリンダ150LH,150RH,150LL,150RLの作動を単独で制御しない(一括して制御する)ので、プレス制御システムの全体構成が実施例1(図5~図10)からさらに簡素化される。また、加熱押圧途中で仮に被処理板材W1(すなわち押圧盤140F,140B(押圧面141))に傾きが発生しても、ラム移動量とシリンダ内圧とのうち少なくとも一方を制御することによって、押圧シリンダ150LH,150RH,150LL,150RLの駆動を一括制御する途上でその傾きを解消できる。
As described above, in this embodiment, since the operations of the individual pressing cylinders 150LH, 150RH, 150LL, and 150RL are not controlled independently (collectively controlled), the overall configuration of the press control system is the first embodiment (FIG. 5). (FIG. 10) is further simplified. In addition, even if the processed plate material W1 (that is, the pressing plates 140F and 140B (the pressing surface 141)) is inclined during the heating and pressing, the pressing is performed by controlling at least one of the ram moving amount and the cylinder internal pressure. The inclination can be eliminated in the course of collectively controlling the driving of the cylinders 150LH, 150RH, 150LL, and 150RL.
(変形例5)
図31は図27の変形例を示す油圧回路図である。図31に示す電動モータには、入力信号に基づいて回転方向及び回転数を制御することによって、最終制御位置(駆動距離=ラム移動量)をフィードバック制御する追従機構(サーボ機構)を連結・駆動するサーボモータ108’が用いられている。また、サーボモータ108’には、その回転方向及び回転数を検出するロータリエンコーダ156が備えられている。このように、サーボモータ108’によってサーボ機構を駆動するので、図31では図27の電磁切換弁155及びリニアエンコーダ151LH,151RH,151LL,151RLが不要となり、油圧回路の簡素化を図ることができる。また、サーボモータ108’は回転数(流速)を制御する機能を有しているので、被処理体Wの加熱押圧時に押圧シリンダ150LH’,150RH’,150LL’,150RL’のラム移動量とラム移動速度とを複合調整することができ、一層精密な制御が可能となる。 (Modification 5)
FIG. 31 is a hydraulic circuit diagram showing a modification of FIG. The electric motor shown in FIG. 31 is connected and driven with a follow-up mechanism (servo mechanism) that feedback-controls the final control position (drive distance = ram movement amount) by controlling the rotation direction and rotation speed based on the input signal. Servo motor 108 'is used. Further, theservo motor 108 ′ is provided with a rotary encoder 156 for detecting the rotation direction and the rotation speed. Thus, since the servo mechanism is driven by the servo motor 108 ', the electromagnetic switching valve 155 and the linear encoders 151LH, 151RH, 151LL, 151RL of FIG. 27 are not required in FIG. 31, and the hydraulic circuit can be simplified. . Since the servo motor 108 'has a function of controlling the rotation speed (flow velocity), the ram movement amount and the ram of the pressing cylinders 150LH', 150RH ', 150LL', 150RL 'when the workpiece W is heated and pressed. The moving speed can be adjusted in combination, and more precise control is possible.
図31は図27の変形例を示す油圧回路図である。図31に示す電動モータには、入力信号に基づいて回転方向及び回転数を制御することによって、最終制御位置(駆動距離=ラム移動量)をフィードバック制御する追従機構(サーボ機構)を連結・駆動するサーボモータ108’が用いられている。また、サーボモータ108’には、その回転方向及び回転数を検出するロータリエンコーダ156が備えられている。このように、サーボモータ108’によってサーボ機構を駆動するので、図31では図27の電磁切換弁155及びリニアエンコーダ151LH,151RH,151LL,151RLが不要となり、油圧回路の簡素化を図ることができる。また、サーボモータ108’は回転数(流速)を制御する機能を有しているので、被処理体Wの加熱押圧時に押圧シリンダ150LH’,150RH’,150LL’,150RL’のラム移動量とラム移動速度とを複合調整することができ、一層精密な制御が可能となる。 (Modification 5)
FIG. 31 is a hydraulic circuit diagram showing a modification of FIG. The electric motor shown in FIG. 31 is connected and driven with a follow-up mechanism (servo mechanism) that feedback-controls the final control position (drive distance = ram movement amount) by controlling the rotation direction and rotation speed based on the input signal. Servo motor 108 'is used. Further, the
(実施例6)
図32はプレス制御システムのさらに他の例を示す油圧回路図、図33はその電気的構成を示すブロック図である。この実施例に示すプレス制御システムでは、複数(例えば4本)の押圧シリンダの駆動を個別(個々単独)にではなく一括(共通)して制御する方式を採用しているが、その配置関係は実施例2(図14)と同様である。 (Example 6)
FIG. 32 is a hydraulic circuit diagram showing still another example of the press control system, and FIG. 33 is a block diagram showing its electrical configuration. In the press control system shown in this embodiment, a method of controlling the driving of a plurality of (for example, four) pressing cylinders collectively (individually) instead of individually (individually individually) is adopted. This is the same as Example 2 (FIG. 14).
図32はプレス制御システムのさらに他の例を示す油圧回路図、図33はその電気的構成を示すブロック図である。この実施例に示すプレス制御システムでは、複数(例えば4本)の押圧シリンダの駆動を個別(個々単独)にではなく一括(共通)して制御する方式を採用しているが、その配置関係は実施例2(図14)と同様である。 (Example 6)
FIG. 32 is a hydraulic circuit diagram showing still another example of the press control system, and FIG. 33 is a block diagram showing its electrical configuration. In the press control system shown in this embodiment, a method of controlling the driving of a plurality of (for example, four) pressing cylinders collectively (individually) instead of individually (individually individually) is adopted. This is the same as Example 2 (FIG. 14).
ただし、図32の油圧回路図では、実施例2(図15)と異なり、電動モータ108で駆動される可変容量型の押圧シリンダ用油圧ポンプ154と各押圧シリンダ150LH,150RH,150LL,150RL(油圧シリンダ;流体圧シリンダ)との間には、4ポート3位置切換型の単一の電磁切換弁155が配置されている。電磁切換弁155は、中立のa位置からb位置に切り換えられたとき油圧ポンプ154と押圧シリンダ150LH,150RH,150LL,150RLとを同時に押圧盤140F,140Bの閉鎖方向に接続するとともに、c位置に切り換えられたとき同じく押圧盤140F,140Bの開放方向に接続する。また、図33のブロック図では、実施例2(図16)と異なり、制御基板20(シリンダ制御部)のROM23において傾き算出プログラムが省略されている。
However, in the hydraulic circuit diagram of FIG. 32, unlike the second embodiment (FIG. 15), the variable displacement type press cylinder hydraulic pump 154 driven by the electric motor 108 and the press cylinders 150LH, 150RH, 150LL, 150RL (hydraulic pressure) A single electromagnetic switching valve 155 of a four-port three-position switching type is disposed between the cylinder and the fluid pressure cylinder). The electromagnetic switching valve 155 connects the hydraulic pump 154 and the pressing cylinders 150LH, 150RH, 150LL, and 150RL simultaneously in the closing direction of the pressing plates 140F and 140B when switched from the neutral a position to the b position, and is also in the c position. When switched, the press plates 140F and 140B are connected in the opening direction. In the block diagram of FIG. 33, unlike the second embodiment (FIG. 16), the tilt calculation program is omitted in the ROM 23 of the control board 20 (cylinder control unit).
したがってこの実施例では、プレス準備処理(図17参照)に続いて実行される硬質材用プレス処理サブルーチン(S4)は図29のように表され、軟質材用プレス処理サブルーチン(S6)は図30のように表される。
Therefore, in this embodiment, the hard material press processing subroutine (S4) executed after the press preparation processing (see FIG. 17) is expressed as shown in FIG. 29, and the soft material press processing subroutine (S6) is shown in FIG. It is expressed as
以上のように、この実施例では、個々の押圧シリンダ150LH,150RH,150LL,150RLの作動を単独で制御しない(一括して制御する)ので、プレス制御システムの全体構成が実施例2(図14~図17)からさらに簡素化される。また、実施例5(図27~図30)と同様に、加熱押圧途中で仮に被処理板材W1(すなわち押圧盤140F,140B(押圧面141))に傾きが発生しても、ラム移動量とシリンダ内圧とのうち少なくとも一方を制御することによって、押圧シリンダ150LH,150RH,150LL,150RLの駆動を一括制御する途上でその傾きを解消できる。
As described above, in this embodiment, since the operations of the individual pressing cylinders 150LH, 150RH, 150LL, and 150RL are not controlled independently (collectively controlled), the overall configuration of the press control system is the second embodiment (FIG. 14). (FIG. 17) is further simplified. Similarly to the fifth embodiment (FIGS. 27 to 30), even if the processed plate material W1 (that is, the pressing plates 140F and 140B (pressing surface 141)) is inclined during the heating and pressing, the ram movement amount By controlling at least one of the cylinder internal pressures, the inclination can be eliminated in the course of collectively controlling the driving of the pressing cylinders 150LH, 150RH, 150LL, and 150RL.
(変形例6)
図34は図32の変形例を示す油圧回路図である。変形例5(図31)と同様に、図34に示す電動モータにもサーボモータ108’が用いられ、ロータリエンコーダ156が備えられている。したがって、この変形例においても油圧回路の簡素化と精密な制御が可能となる。 (Modification 6)
FIG. 34 is a hydraulic circuit diagram showing a modification of FIG. As in the fifth modification (FIG. 31), the electric motor shown in FIG. 34 also uses aservo motor 108 ′ and includes a rotary encoder 156. Therefore, also in this modified example, the hydraulic circuit can be simplified and precisely controlled.
図34は図32の変形例を示す油圧回路図である。変形例5(図31)と同様に、図34に示す電動モータにもサーボモータ108’が用いられ、ロータリエンコーダ156が備えられている。したがって、この変形例においても油圧回路の簡素化と精密な制御が可能となる。 (Modification 6)
FIG. 34 is a hydraulic circuit diagram showing a modification of FIG. As in the fifth modification (FIG. 31), the electric motor shown in FIG. 34 also uses a
1 横型多段プレス装置
10 大きさ選択スイッチ
11 材質選択スイッチ
20 制御基板(シリンダ制御部)
100 ホットプレス部(加熱加圧部;プレス構造)
103F,103B 固定フレーム
130 熱板
140F,140B 押圧盤
141 押圧面
150LH,150RH,150LL,150RL 押圧シリンダ(油圧シリンダ;流体圧シリンダ)
151LH,151RH,151LL,151RL 押圧シリンダ用リニアエンコーダ(移動量検出手段;距離検出手段)
152LH,152RH,152LL,152RL 押圧シリンダ用圧力センサ(圧力検出手段)
153LH,153RH,153LL,153RL ラム
170LH,170RH,170LL,170RL 昇降シリンダ(油圧シリンダ;流体圧シリンダ)
171LH,171RH,171LL,171RL 昇降シリンダ用光電センサ(移動検出手段)
180 開閉シリンダ(油圧シリンダ;流体圧シリンダ)
181 開閉シリンダ用圧力スイッチ(圧力検出手段)
B 搬送基準面
P シリンダ内圧(駆動圧力)の目標値
S ラム移動量(駆動距離)の設定値
W 被処理体
W1 被処理板材(板材)
W2 処理済板材(積層合板) 1 Horizontalmulti-stage press device 10 Size selection switch 11 Material selection switch 20 Control board (cylinder control unit)
100 Hot press section (heating and pressing section; press structure)
103F, 103B Fixedframe 130 Hot plate 140F, 140B Press panel 141 Press surface 150LH, 150RH, 150LL, 150RL Press cylinder (hydraulic cylinder; fluid pressure cylinder)
151LH, 151RH, 151LL, 151RL Linear encoder for pressing cylinder (movement amount detection means; distance detection means)
152LH, 152RH, 152LL, 152RL Pressure sensor for pressure cylinder (pressure detection means)
153LH, 153RH, 153LL, 153RL Ram 170LH, 170RH, 170LL, 170RL Lifting cylinder (hydraulic cylinder; fluid pressure cylinder)
171LH, 171RH, 171LL, 171RL Elevating cylinder photoelectric sensor (movement detection means)
180 Opening and closing cylinder (hydraulic cylinder; fluid pressure cylinder)
181 Pressure switch for open / close cylinder (pressure detection means)
B Transport reference plane P Target value of cylinder internal pressure (drive pressure) S Set value of ram travel (drive distance) W Object to be processed W1 Plate material to be processed (plate material)
W2 processed board (laminated plywood)
10 大きさ選択スイッチ
11 材質選択スイッチ
20 制御基板(シリンダ制御部)
100 ホットプレス部(加熱加圧部;プレス構造)
103F,103B 固定フレーム
130 熱板
140F,140B 押圧盤
141 押圧面
150LH,150RH,150LL,150RL 押圧シリンダ(油圧シリンダ;流体圧シリンダ)
151LH,151RH,151LL,151RL 押圧シリンダ用リニアエンコーダ(移動量検出手段;距離検出手段)
152LH,152RH,152LL,152RL 押圧シリンダ用圧力センサ(圧力検出手段)
153LH,153RH,153LL,153RL ラム
170LH,170RH,170LL,170RL 昇降シリンダ(油圧シリンダ;流体圧シリンダ)
171LH,171RH,171LL,171RL 昇降シリンダ用光電センサ(移動検出手段)
180 開閉シリンダ(油圧シリンダ;流体圧シリンダ)
181 開閉シリンダ用圧力スイッチ(圧力検出手段)
B 搬送基準面
P シリンダ内圧(駆動圧力)の目標値
S ラム移動量(駆動距離)の設定値
W 被処理体
W1 被処理板材(板材)
W2 処理済板材(積層合板) 1 Horizontal
100 Hot press section (heating and pressing section; press structure)
103F, 103B Fixed
151LH, 151RH, 151LL, 151RL Linear encoder for pressing cylinder (movement amount detection means; distance detection means)
152LH, 152RH, 152LL, 152RL Pressure sensor for pressure cylinder (pressure detection means)
153LH, 153RH, 153LL, 153RL Ram 170LH, 170RH, 170LL, 170RL Lifting cylinder (hydraulic cylinder; fluid pressure cylinder)
171LH, 171RH, 171LL, 171RL Elevating cylinder photoelectric sensor (movement detection means)
180 Opening and closing cylinder (hydraulic cylinder; fluid pressure cylinder)
181 Pressure switch for open / close cylinder (pressure detection means)
B Transport reference plane P Target value of cylinder internal pressure (drive pressure) S Set value of ram travel (drive distance) W Object to be processed W1 Plate material to be processed (plate material)
W2 processed board (laminated plywood)
Claims (15)
- 単板の接合面に接着剤を塗布して積層された板材を複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の外側から押圧することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記板材の板面に対して互いに異なる複数の位置に配置され、前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの各々の駆動を個別に制御するシリンダ制御部と、
を備えることを特徴とする横型多段プレス装置。 A plate is formed by applying adhesives to the bonding surface of a single plate and carrying it in an upright state between a plurality of hot plates and stacking them in the thickness direction. In the horizontal multi-stage press device that presses and presses the plate material by pressing from the outside in the overlapping direction of the body, and collectively manufactures a plurality of wooden laminated plywoods,
A plurality of pressing cylinders arranged at a plurality of positions different from each other with respect to the plate surface of the plate material, and pressing the object to be processed from the overlapping direction;
A cylinder controller that individually controls the driving of each of the plurality of pressing cylinders;
A horizontal multi-stage press device comprising: - 単板の接合面に接着剤を塗布して積層された矩形状の板材の長辺の一方を搬送基準面とし、複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の両外側に配置された押圧盤の少なくとも一方を駆動することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記押圧盤の押圧面にて中央付近に配置され、その押圧盤を接近・離間させて閉鎖・開放する開閉シリンダと、
その開閉シリンダの周囲を取り巻くように前記押圧盤の押圧面に対して互いに異なる複数の位置に配置され、その押圧盤を駆動して前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの各々の駆動を個別に制御するシリンダ制御部と、
を備えることを特徴とする横型多段プレス装置。 One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. Combining them together constitutes the object to be processed, and by driving at least one of the pressing plates disposed on both outer sides of the object to be processed in the overlapping direction, the plate material is thermocompression-bonded, and a plurality of wooden laminated plywoods are bundled together. In the horizontal multi-stage press machine manufactured by
An opening / closing cylinder that is disposed near the center on the pressing surface of the pressing plate, and closes / opens the pressing plate by approaching / separating it,
A plurality of pressing cylinders which are arranged at a plurality of positions different from each other with respect to the pressing surface of the pressing plate so as to surround the opening / closing cylinder, and drive the pressing plate to press the objects to be processed from the overlapping direction. When,
A cylinder controller that individually controls the driving of each of the plurality of pressing cylinders;
A horizontal multi-stage press device comprising: - 前記シリンダ制御部は、前記複数の押圧シリンダが前記被処理体を押圧する際の駆動距離をそれぞれ検出する距離検出手段と、それら複数の押圧シリンダに付与される駆動圧力をそれぞれ検出する圧力検出手段とを有し、加熱押圧後の被処理体全体の厚さを許容寸法の範囲内とするために、前記距離検出手段で検出される各押圧シリンダの駆動距離が所定の設定範囲内において偏りなく均一に近づくように各押圧シリンダを個別に駆動制御する請求の範囲第1項又は第2項に記載の横型多段プレス装置。 The cylinder control unit includes a distance detection unit that detects driving distances when the plurality of pressing cylinders press the workpiece, and a pressure detection unit that detects driving pressures applied to the plurality of pressing cylinders, respectively. And the driving distance of each pressing cylinder detected by the distance detecting means is not biased within a predetermined setting range in order to keep the thickness of the entire object to be processed after heating and pressing within the allowable dimension range. The horizontal multi-stage press device according to claim 1 or 2, wherein each pressing cylinder is individually driven and controlled so as to approach uniformly.
- 前記シリンダ制御部は、
前記複数の押圧シリンダの押圧駆動に伴って各押圧シリンダの駆動圧力が所定の目標範囲に達したとき、前記距離検出手段で検出される各押圧シリンダの駆動距離が前記設定範囲内であり、かつ偏りなく均一とみなせる均一範囲内にある場合には、前記複数の押圧シリンダの押圧駆動を停止する請求の範囲第3項に記載の横型多段プレス装置。 The cylinder controller
When the driving pressure of each pressing cylinder reaches a predetermined target range in accordance with the pressing drive of the plurality of pressing cylinders, the driving distance of each pressing cylinder detected by the distance detecting means is within the set range; and 4. The horizontal multi-stage press device according to claim 3, wherein the pressing drive of the plurality of pressing cylinders is stopped when it is within a uniform range that can be regarded as uniform without bias. - 前記押圧シリンダの駆動距離が前記均一範囲内にあるか否かは、前記距離検出手段で検出された各々の押圧シリンダの駆動距離の差の大小、又はそれら駆動距離の検出値から演算された前記板材の傾きの大小によって判定される請求の範囲第4項に記載の横型多段プレス装置。 Whether or not the driving distance of the pressing cylinder is within the uniform range is calculated based on the difference between the driving distances of the pressing cylinders detected by the distance detecting unit or the detected value of the driving distance. The horizontal multi-stage press apparatus according to claim 4, wherein the horizontal multi-stage press apparatus is determined based on the inclination of the plate material.
- 前記シリンダ制御部は、
前記複数の押圧シリンダの押圧駆動に伴って各押圧シリンダの駆動圧力が所定の目標範囲に達したとき、前記距離検出手段で検出される各押圧シリンダの駆動距離が前記設定範囲内であり、かつ偏りなく均一とみなせる均一範囲内にある場合には、前記複数の押圧シリンダの押圧駆動を停止する一方、
いずれかの押圧シリンダの駆動距離が前記均一範囲内にない場合には、その押圧シリンダの駆動圧力に係る目標範囲の上下限を拡大することによって、対応する押圧シリンダの駆動圧力を増圧又は減圧可能とする請求の範囲第3項に記載の横型多段プレス装置。 The cylinder controller
When the driving pressure of each pressing cylinder reaches a predetermined target range in accordance with the pressing drive of the plurality of pressing cylinders, the driving distance of each pressing cylinder detected by the distance detecting means is within the set range; and When it is within a uniform range that can be regarded as uniform without bias, while stopping the pressing drive of the plurality of pressing cylinders,
If the driving distance of any pressing cylinder is not within the uniform range, the driving pressure of the corresponding pressing cylinder is increased or decreased by expanding the upper and lower limits of the target range related to the driving pressure of the pressing cylinder. The horizontal multi-stage press apparatus according to claim 3, which is enabled. - 前記押圧シリンダの駆動距離が前記均一範囲内にあるか否かは、前記距離検出手段で検出された各々の押圧シリンダの駆動距離の差の大小、又はそれら駆動距離の検出値から演算された前記板材の傾きの大小によって判定される請求の範囲第6項に記載の横型多段プレス装置。 Whether or not the driving distance of the pressing cylinder is within the uniform range is calculated based on the difference between the driving distances of the pressing cylinders detected by the distance detecting unit or the detected value of the driving distance. The horizontal multi-stage press apparatus according to claim 6, wherein the horizontal multi-stage press apparatus is determined based on the inclination of the plate material.
- 前記シリンダ制御部は、
前記複数の押圧シリンダの押圧駆動に伴って各押圧シリンダの駆動距離が前記設定範囲に達したとき、前記圧力検出手段で検出される各押圧シリンダの駆動圧力が所定の目標範囲内であり、かつ前記距離検出手段で検出される各押圧シリンダの駆動距離が偏りなく均一とみなせる均一範囲内にある場合には、前記複数の押圧シリンダの押圧駆動を停止する請求の範囲第3項に記載の横型多段プレス装置。 The cylinder controller
When the driving distance of each pressing cylinder reaches the set range with the pressing driving of the plurality of pressing cylinders, the driving pressure of each pressing cylinder detected by the pressure detecting means is within a predetermined target range, and The horizontal type according to claim 3, wherein when the driving distance of each pressing cylinder detected by the distance detecting means is within a uniform range that can be regarded as uniform without deviation, the pressing driving of the plurality of pressing cylinders is stopped. Multi-stage press machine. - 前記押圧シリンダの駆動距離が前記均一範囲内にあるか否かは、前記距離検出手段で検出された各々の押圧シリンダの駆動距離の差の大小、又はそれら駆動距離の検出値から演算された前記板材の傾きの大小によって判定される請求の範囲第8項に記載の横型多段プレス装置。 Whether or not the driving distance of the pressing cylinder is within the uniform range is calculated based on the difference between the driving distances of the pressing cylinders detected by the distance detecting unit or the detected value of the driving distance. The horizontal multi-stage press apparatus according to claim 8, which is determined by the inclination of the plate material.
- 前記シリンダ制御部は、
前記複数の押圧シリンダの押圧駆動に伴って各押圧シリンダの駆動距離が前記設定範囲の下限に達したとき、前記圧力検出手段で検出される各押圧シリンダの駆動圧力が所定の目標範囲の上限以下であり、かつ前記距離検出手段で検出される各押圧シリンダの駆動距離が偏りなく均一とみなせる均一範囲内にある場合には、前記複数の押圧シリンダの押圧駆動を停止する一方、
いずれかの押圧シリンダの駆動距離が前記均一範囲内にない場合には、対応する押圧シリンダの駆動距離が前記設定範囲の上限以下であればその駆動圧力を増圧可能とする請求の範囲第3項に記載の横型多段プレス装置。 The cylinder controller
When the driving distance of each pressing cylinder reaches the lower limit of the set range with the pressing driving of the plurality of pressing cylinders, the driving pressure of each pressing cylinder detected by the pressure detecting means is less than or equal to the upper limit of the predetermined target range. And when the driving distances of the respective pressing cylinders detected by the distance detecting means are within a uniform range that can be regarded as uniform without deviation, the pressing driving of the plurality of pressing cylinders is stopped,
When the driving distance of any of the pressing cylinders is not within the uniform range, the driving pressure can be increased if the driving distance of the corresponding pressing cylinder is less than or equal to the upper limit of the setting range. The horizontal multi-stage press device according to item. - 前記押圧シリンダの駆動距離が前記均一範囲内にあるか否かは、前記距離検出手段で検出された各々の押圧シリンダの駆動距離の差の大小、又はそれら駆動距離の検出値から演算された前記板材の傾きの大小によって判定される請求の範囲第10項に記載の横型多段プレス装置。 Whether or not the driving distance of the pressing cylinder is within the uniform range is calculated based on the difference between the driving distances of the pressing cylinders detected by the distance detecting unit or the detected value of the driving distance. The horizontal multi-stage press apparatus according to claim 10, wherein the horizontal multi-stage press apparatus is determined based on the inclination of the plate material.
- 単板の接合面に接着剤を塗布して積層された矩形状の板材の長辺の一方を搬送基準面とし、複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の外側から押圧することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記板材の板面に対して互いに異なる複数の位置に配置され、前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの駆動を個別に又は一括して制御するシリンダ制御部とを備え、
前記複数の押圧シリンダのうち、少なくとも前記板材の搬送基準面寄りに配置された押圧シリンダは、前記板材の板面に対する押圧位置が不変とされることを特徴とする横型多段プレス装置。 One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. In the horizontal multi-stage press apparatus that constitutes the object to be processed by combining them, heats and presses the plate material by pressing from the outside in the overlapping direction of the objects to be processed, and collectively manufactures a plurality of wooden laminated plywoods,
A plurality of pressing cylinders arranged at a plurality of positions different from each other with respect to the plate surface of the plate material, and pressing the object to be processed from the overlapping direction;
A cylinder control unit for controlling the driving of the plurality of pressing cylinders individually or collectively,
Of the plurality of pressing cylinders, a pressing cylinder disposed at least near the reference conveyance surface of the plate material is such that the pressing position of the plate material with respect to the plate surface is unchanged. - 単板の接合面に接着剤を塗布して積層された矩形状の板材の長辺の一方を搬送基準面とし、複数配置された熱板の間にそれぞれ起立状態で搬入して、厚さ方向に重ね合わせることにより被処理体を構成し、その被処理体の重ね合わせ方向の両外側に配置された押圧盤の少なくとも一方を駆動することにより前記板材を加熱圧着し、複数の木製積層合板を一括して製造する横型多段プレス装置において、
前記押圧盤の押圧面にて中央付近に配置され、その押圧盤を接近・離間させて閉鎖・開放する開閉シリンダと、
その開閉シリンダの周囲を取り巻くように前記押圧盤の押圧面に対して互いに異なる複数の位置に配置され、その押圧盤を駆動して前記被処理体をそれぞれ重ね合わせ方向から押圧する複数の押圧シリンダと、
それら複数の押圧シリンダの駆動を個別に又は一括して制御するシリンダ制御部とを備え、
前記複数の押圧シリンダのうち、少なくとも前記開閉シリンダよりも前記板材の搬送基準面寄りに配置された押圧シリンダは、前記押圧盤の押圧面に対する押圧位置が不変とされることを特徴とする横型多段プレス装置。 One of the long sides of the rectangular plates laminated by applying adhesive to the bonding surface of the single plate is used as the transport reference surface, and each is placed in a standing state between the multiple hot plates and stacked in the thickness direction. Combining them together constitutes the object to be processed, and by driving at least one of the pressing plates disposed on both outer sides of the object to be processed in the overlapping direction, the plate material is thermocompression-bonded, and a plurality of wooden laminated plywoods are bundled together. In the horizontal multi-stage press machine manufactured by
An opening / closing cylinder that is disposed near the center on the pressing surface of the pressing plate, and closes / opens the pressing plate by approaching / separating it,
A plurality of pressing cylinders which are arranged at a plurality of positions different from each other with respect to the pressing surface of the pressing plate so as to surround the opening / closing cylinder, and drive the pressing plate to press the objects to be processed from the overlapping direction. When,
A cylinder control unit for controlling the driving of the plurality of pressing cylinders individually or collectively,
Of the plurality of pressing cylinders, at least a pressing cylinder disposed closer to a conveyance reference plane of the plate member than the opening / closing cylinder has a pressing position with respect to the pressing surface of the pressing plate that is unchanged. Press device. - 前記複数の押圧シリンダは、
前記板材の搬送基準面寄りの領域に配置され、かつ前記板材の板面に対する押圧位置が不変とされた複数の固定式押圧シリンダと、
前記搬送基準面から遠い領域に配置され、かつ前記板材の板面に対する押圧位置が前記固定式押圧シリンダの押圧位置に対して変更可能とされた複数の移動式押圧シリンダとを含む請求の範囲第12項又は第13項に記載の横型多段プレス装置。 The plurality of pressing cylinders are:
A plurality of fixed pressing cylinders arranged in a region near the conveyance reference surface of the plate material, and the pressing position of the plate material with respect to the plate surface is unchanged;
And a plurality of movable pressing cylinders arranged in a region far from the conveyance reference surface and capable of changing a pressing position of the plate material with respect to the plate surface with respect to a pressing position of the fixed pressing cylinder. 14. A horizontal multi-stage press apparatus according to item 12 or 13. - 前記複数の押圧シリンダは、前記押圧盤の押圧面に対する押圧位置が不変とされた偶数の固定式押圧シリンダで構成され、前記開閉シリンダに関して互いに点対称及び/又は線対称の位置になるように配置されている請求の範囲第13項に記載の横型多段プレス装置。 The plurality of pressing cylinders are composed of an even number of fixed pressing cylinders whose pressing positions with respect to the pressing surface of the pressing plate are unchanged, and are arranged so as to be point-symmetrical and / or line-symmetrical with respect to the opening / closing cylinder. The horizontal multi-stage press apparatus according to claim 13.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/000,074 US7992614B2 (en) | 2008-07-16 | 2009-07-15 | Horizontal hotpress system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-185283 | 2008-07-16 | ||
JP2008-185284 | 2008-07-16 | ||
JP2008185283A JP4397957B1 (en) | 2008-07-16 | 2008-07-16 | Horizontal multi-stage press |
JP2008185284A JP4422189B2 (en) | 2008-07-16 | 2008-07-16 | Horizontal multi-stage press |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010008018A1 true WO2010008018A1 (en) | 2010-01-21 |
Family
ID=41550420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/062799 WO2010008018A1 (en) | 2008-07-16 | 2009-07-15 | Horizontal multistage press |
Country Status (3)
Country | Link |
---|---|
US (1) | US7992614B2 (en) |
TW (1) | TWI480151B (en) |
WO (1) | WO2010008018A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102689335A (en) * | 2011-03-21 | 2012-09-26 | 圣象(江苏)木业研究有限公司 | Manufacturing method and manufacturing template of artificial board with high/low light alternated facing |
CN102729298A (en) * | 2012-07-02 | 2012-10-17 | 穆国君 | Bamboo recombination material hydraulic unit loading and mode pushing combination device |
CN110421677A (en) * | 2019-06-13 | 2019-11-08 | 南阳师范学院 | A kind of continuous compression moulding process equipment of biomass artificial board high speed |
CN111452151A (en) * | 2020-04-14 | 2020-07-28 | 高飞 | Composite board hot pressing equipment |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6538197B2 (en) * | 2016-08-09 | 2019-07-03 | 株式会社太平製作所 | Multi-stage drying apparatus and multi-stage drying method for treated plate material |
CN107053819B (en) * | 2017-06-06 | 2022-12-16 | 济南月宫冷冻设备有限公司 | Laminating machine and laminating machine system |
CN107901567A (en) * | 2017-12-18 | 2018-04-13 | 无锡优耐特能源科技有限公司 | A kind of area heating installation |
CN110539519B (en) * | 2019-09-11 | 2021-01-15 | 深圳市亚启科技有限公司 | Control method of oil press |
JP7404315B2 (en) * | 2021-07-26 | 2023-12-25 | 株式会社日本製鋼所 | Press equipment and press equipment control method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61102201A (en) * | 1984-10-25 | 1986-05-20 | 株式会社 太平製作所 | Uniform pressing method and device for horizontal type multistage press |
JPH0339444B2 (en) * | 1983-11-21 | 1991-06-13 | Taihei Seisakusho Kk | |
JPH0440120B2 (en) * | 1982-11-12 | 1992-07-01 | Hitachi Ltd | |
JP3074163B2 (en) * | 1998-11-17 | 2000-08-07 | 川崎重工業株式会社 | Interlocking door device |
JP3077761B2 (en) * | 1990-01-08 | 2000-08-14 | 株式会社東芝 | X-ray equipment |
JP2007313864A (en) * | 2006-05-29 | 2007-12-06 | Taihei Mach Works Ltd | Press structure of horizontal multistage press apparatus |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2128427C3 (en) * | 1971-06-08 | 1980-02-21 | Becker & Van Huellen Niederrheinische Maschinenfabrik Gmbh & Co, 4150 Krefeld | Multi-daylight heating press for the production of chipboard |
US4222724A (en) * | 1978-12-08 | 1980-09-16 | Niederrheinische Maschinenfabrik Becker & Van Hullen | Multi-platen press for pressing chipboards and the like without spacer strips |
JPS6058811A (en) * | 1983-09-13 | 1985-04-05 | Taihei Mach Works Ltd | Feeder of item to be processed to horizontal multistage press |
US4846925A (en) * | 1987-01-02 | 1989-07-11 | Taihei Machinery Works, Ltd. | Horizontal multiplaten press |
JPH0753364B2 (en) * | 1991-05-10 | 1995-06-07 | 株式会社 太平製作所 | Hot plate for horizontal multi-stage press |
JP2937762B2 (en) * | 1994-08-03 | 1999-08-23 | 山本ビニター株式会社 | High frequency multi-stage press |
JP4040120B2 (en) | 1996-03-13 | 2008-01-30 | 新日鐵化学株式会社 | Alkali-developable resin composition and cured film using the same |
JP3039444B2 (en) | 1997-05-22 | 2000-05-08 | 日本電気株式会社 | Image storage device |
JP3701533B2 (en) * | 2000-01-28 | 2005-09-28 | 株式会社名機製作所 | Hot press equipment |
JP2002059300A (en) * | 2000-08-11 | 2002-02-26 | Meiki Co Ltd | Hot press |
DE102004032259B4 (en) * | 2004-07-03 | 2006-05-11 | Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg | Press, in particular multi-daylight press |
JP4793991B2 (en) * | 2006-05-29 | 2011-10-12 | 株式会社太平製作所 | Plate material carrying structure of horizontal multi-stage press machine |
CN201020774Y (en) * | 2006-12-30 | 2008-02-13 | 烟台黄海木工机械有限责任公司 | Hydraulic four sides rotation board jointer |
CN200988259Y (en) * | 2006-12-31 | 2007-12-12 | 烟台黄海木工机械有限责任公司 | Hydraulic four-side rotary plate put together machine |
-
2009
- 2009-07-15 WO PCT/JP2009/062799 patent/WO2010008018A1/en active Application Filing
- 2009-07-15 US US13/000,074 patent/US7992614B2/en active Active
- 2009-07-16 TW TW098124046A patent/TWI480151B/en active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0440120B2 (en) * | 1982-11-12 | 1992-07-01 | Hitachi Ltd | |
JPH0339444B2 (en) * | 1983-11-21 | 1991-06-13 | Taihei Seisakusho Kk | |
JPS61102201A (en) * | 1984-10-25 | 1986-05-20 | 株式会社 太平製作所 | Uniform pressing method and device for horizontal type multistage press |
JP3077761B2 (en) * | 1990-01-08 | 2000-08-14 | 株式会社東芝 | X-ray equipment |
JP3074163B2 (en) * | 1998-11-17 | 2000-08-07 | 川崎重工業株式会社 | Interlocking door device |
JP2007313864A (en) * | 2006-05-29 | 2007-12-06 | Taihei Mach Works Ltd | Press structure of horizontal multistage press apparatus |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102689335A (en) * | 2011-03-21 | 2012-09-26 | 圣象(江苏)木业研究有限公司 | Manufacturing method and manufacturing template of artificial board with high/low light alternated facing |
CN102729298A (en) * | 2012-07-02 | 2012-10-17 | 穆国君 | Bamboo recombination material hydraulic unit loading and mode pushing combination device |
CN110421677A (en) * | 2019-06-13 | 2019-11-08 | 南阳师范学院 | A kind of continuous compression moulding process equipment of biomass artificial board high speed |
CN111452151A (en) * | 2020-04-14 | 2020-07-28 | 高飞 | Composite board hot pressing equipment |
Also Published As
Publication number | Publication date |
---|---|
TWI480151B (en) | 2015-04-11 |
TW201020102A (en) | 2010-06-01 |
US20110120654A1 (en) | 2011-05-26 |
US7992614B2 (en) | 2011-08-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2010008018A1 (en) | Horizontal multistage press | |
JP4397958B1 (en) | Horizontal multi-stage press | |
TWI516348B (en) | Vertical plate of the stamping device | |
JP4422189B2 (en) | Horizontal multi-stage press | |
JP5373384B2 (en) | Vertical cold press machine | |
JP4397957B1 (en) | Horizontal multi-stage press | |
JP5373383B2 (en) | Vertical hot press machine | |
JP6538197B2 (en) | Multi-stage drying apparatus and multi-stage drying method for treated plate material | |
JP4781166B2 (en) | Plate material positioning structure of horizontal multi-stage press machine | |
EP1854622B1 (en) | Multidaylight press for bonding flat elements, particularly for the hot or cold bonding of veneers, laminates or the like on sandwich, chipwood, honeycomb panels or the like and for producing plywoods, chipwood panels and the like | |
WO2011161751A1 (en) | Vertical plate press device | |
JP4781167B2 (en) | Plate material holding structure of horizontal multi-stage press machine | |
KR101517487B1 (en) | Wood bonding apparatus having pattem wood align unit | |
JP4776442B2 (en) | Plate material carrying structure of horizontal multi-stage press machine | |
KR101567466B1 (en) | Sheet supply apparatus for box | |
JP4793990B2 (en) | Plate material positioning structure of horizontal multi-stage press machine | |
JP6050074B2 (en) | Multi-stage cold press | |
JP2700543B2 (en) | Thermal pressure control method for multi-stage press | |
JP2014073592A (en) | Multistage cold press | |
KR20150099996A (en) | Folding apparatus for box | |
CN106142674B (en) | A kind of plate delivery device | |
JP4423092B2 (en) | Press equipment and laminated wood manufacturing equipment. | |
FI116207B (en) | Method for making plywood in LVL line | |
CZ28046U1 (en) | Plant to produce structured wooden boards with a relief | |
CZ306006B6 (en) | Process for producing structured boards with relief and apparatus for making the same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09797943 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13000074 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09797943 Country of ref document: EP Kind code of ref document: A1 |